91157195 has 8 divisors (see below), whose sum is σ = 109441536. Its totient is φ = 72890496.

The previous prime is 91157189. The next prime is 91157239. The reversal of 91157195 is 59175119.

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 91157195 - 2⁸ = 91156939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13814 + ... + 19316.

It is an arithmetic number, because the mean of its divisors is an integer number (13680192).

Almost surely, 2^91157195 is an apocalyptic number.

91157195 is a deficient number, since it is larger than the sum of its proper divisors (18284341).

91157195 is a wasteful number, since it uses less digits than its factorization.

91157195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821.

The product of its digits is 14175, while the sum is 38.

The square root of 91157195 is about 9547.6277158255. The cubic root of 91157195 is about 450.0529896447.

The spelling of 91157195 in words is "ninety-one million, one hundred fifty-seven thousand, one hundred ninety-five".