75231136 has 24 divisors (see below), whose sum is σ = 150625440. Its totient is φ = 36977088.

The previous prime is 75231131. The next prime is 75231139. The reversal of 75231136 is 63113257.

It is not an unprimeable number, because it can be changed into a prime (75231131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18036 + ... + 21811.

It is an arithmetic number, because the mean of its divisors is an integer number (6276060).

Almost surely, 2^75231136 is an apocalyptic number.

It is an amenable number.

75231136 is an abundant number, since it is smaller than the sum of its proper divisors (75394304).

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

75231136 is a wasteful number, since it uses less digits than its factorization.

75231136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39916 (or 39908 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 75231136 is about 8673.5884154138. The cubic root of 75231136 is about 422.1491053856.

The spelling of 75231136 in words is "seventy-five million, two hundred thirty-one thousand, one hundred thirty-six".