136789146 has 48 divisors (see below), whose sum is σ = 323066016. Its totient is φ = 41575968.

The previous prime is 136789141. The next prime is 136789153. The reversal of 136789146 is 641987631.

It is a happy number.

It is a super-2 number, since 2×136789146² = 37422540926818632, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136789141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15901 + ... + 22943.

It is an arithmetic number, because the mean of its divisors is an integer number (6730542).

Almost surely, 2^136789146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136789146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161533008).

136789146 is an abundant number, since it is smaller than the sum of its proper divisors (186276870).

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

136789146 is a wasteful number, since it uses less digits than its factorization.

136789146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147 (or 7144 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 136789146 is about 11695.6892058570. The cubic root of 136789146 is about 515.2490654383.

The spelling of 136789146 in words is "one hundred thirty-six million, seven hundred eighty-nine thousand, one hundred forty-six".