91371245 has 8 divisors (see below), whose sum is σ = 125309184. Its totient is φ = 62654544.

The previous prime is 91371223. The next prime is 91371251. The reversal of 91371245 is 54217319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91371245 - 2⁸ = 91370989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305269 + ... + 1305338.

It is an arithmetic number, because the mean of its divisors is an integer number (15663648).

Almost surely, 2^91371245 is an apocalyptic number.

It is an amenable number.

91371245 is a deficient number, since it is larger than the sum of its proper divisors (33937939).

91371245 is a wasteful number, since it uses less digits than its factorization.

91371245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610619.

The product of its digits is 7560, while the sum is 32.

The square root of 91371245 is about 9558.8307339339. The cubic root of 91371245 is about 450.4049769959.

The spelling of 91371245 in words is "ninety-one million, three hundred seventy-one thousand, two hundred forty-five".