128107236 has 12 divisors (see below), whose sum is σ = 298916912. Its totient is φ = 42702408.

The previous prime is 128107219. The next prime is 128107241. The reversal of 128107236 is 632701821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×128107236² = 32822927831119392, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5337790 + ... + 5337813.

Almost surely, 2^128107236 is an apocalyptic number.

It is an amenable number.

128107236 is an abundant number, since it is smaller than the sum of its proper divisors (170809676).

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

128107236 is a wasteful number, since it uses less digits than its factorization.

128107236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675610 (or 10675608 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 128107236 is about 11318.4467132200. The cubic root of 128107236 is about 504.1091191045.

The spelling of 128107236 in words is "one hundred twenty-eight million, one hundred seven thousand, two hundred thirty-six".