136689192 has 96 divisors (see below), whose sum is σ = 392714400. Its totient is φ = 42830208.

The previous prime is 136689191. The next prime is 136689193. The reversal of 136689192 is 291986631.

It is a happy number.

136689192 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (136689191) and next prime (136689193).

It is a super-2 number, since 2×136689192² = 37367870419225728, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (136689191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222678 + ... + 223290.

It is an arithmetic number, because the mean of its divisors is an integer number (4090775).

Almost surely, 2^136689192 is an apocalyptic number.

136689192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136689192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196357200).

136689192 is an abundant number, since it is smaller than the sum of its proper divisors (256025208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136689192 is a wasteful number, since it uses less digits than its factorization.

136689192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 800 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 136689192 is about 11691.4153120997. The cubic root of 136689192 is about 515.1235346343.

The spelling of 136689192 in words is "one hundred thirty-six million, six hundred eighty-nine thousand, one hundred ninety-two".