136599894 has 24 divisors (see below), whose sum is σ = 296358192. Its totient is φ = 45473040.

The previous prime is 136599877. The next prime is 136599899. The reversal of 136599894 is 498995631.

It is a super-2 number, since 2×136599894² = 37319062081622472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136599894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136599899) 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 11 ways as a sum of consecutive naturals, for example, 10204 + ... + 19424.

It is an arithmetic number, because the mean of its divisors is an integer number (12348258).

Almost surely, 2^136599894 is an apocalyptic number.

136599894 is an abundant number, since it is smaller than the sum of its proper divisors (159758298).

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

136599894 is a wasteful number, since it uses less digits than its factorization.

136599894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10052 (or 10049 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 136599894 is about 11687.5957322282. The cubic root of 136599894 is about 515.0113347805.

The spelling of 136599894 in words is "one hundred thirty-six million, five hundred ninety-nine thousand, eight hundred ninety-four".