91537252 has 12 divisors (see below), whose sum is σ = 160707456. Its totient is φ = 45620840.

The previous prime is 91537249. The next prime is 91537267. The reversal of 91537252 is 25273519.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35548 + ... + 38035.

It is an arithmetic number, because the mean of its divisors is an integer number (13392288).

Almost surely, 2^91537252 is an apocalyptic number.

It is an amenable number.

91537252 is a deficient number, since it is larger than the sum of its proper divisors (69170204).

91537252 is a wasteful number, since it uses less digits than its factorization.

91537252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73898 (or 73896 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 91537252 is about 9567.5102299397. The cubic root of 91537252 is about 450.6775833383.

The spelling of 91537252 in words is "ninety-one million, five hundred thirty-seven thousand, two hundred fifty-two".