91002125232 has 30 divisors (see below), whose sum is σ = 254679559212. Its totient is φ = 30334041696.

The previous prime is 91002125177. The next prime is 91002125233. The reversal of 91002125232 is 23252120019.

It is a happy number.

It is a super-2 number, since 2×91002125232² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 91002125196 and 91002125205.

It is not an unprimeable number, because it can be changed into a prime (91002125233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315979458 + ... + 315979745.

Almost surely, 2^91002125232 is an apocalyptic number.

It is an amenable number.

91002125232 is an abundant number, since it is smaller than the sum of its proper divisors (163677433980).

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

91002125232 is a wasteful number, since it uses less digits than its factorization.

91002125232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631959217 (or 631959208 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 91002125232 in words is "ninety-one billion, two million, one hundred twenty-five thousand, two hundred thirty-two".