91297125 has 80 divisors (see below), whose sum is σ = 173961216. Its totient is φ = 47628000.

The previous prime is 91297091. The next prime is 91297169. The reversal of 91297125 is 52179219.

It is not a de Polignac number, because 91297125 - 2¹³ = 91288933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91297125.

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 718812 + ... + 718938.

Almost surely, 2^91297125 is an apocalyptic number.

It is an amenable number.

91297125 is a deficient number, since it is larger than the sum of its proper divisors (82664091).

91297125 is a wasteful number, since it uses less digits than its factorization.

91297125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 206 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 91297125 is about 9554.9529041226. The cubic root of 91297125 is about 450.2831551252.

The spelling of 91297125 in words is "ninety-one million, two hundred ninety-seven thousand, one hundred twenty-five".