91795151 has 4 divisors (see below), whose sum is σ = 104908752. Its totient is φ = 78681552.

The previous prime is 91795147. The next prime is 91795157. The reversal of 91795151 is 15159719.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15159719 = 389 ⋅38971.

It is a cyclic number.

It is not a de Polignac number, because 91795151 - 2² = 91795147 is a prime.

It is a super-2 number, since 2×91795151² = 16852699494225602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91795157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6556790 + ... + 6556803.

It is an arithmetic number, because the mean of its divisors is an integer number (26227188).

Almost surely, 2^91795151 is an apocalyptic number.

91795151 is a deficient number, since it is larger than the sum of its proper divisors (13113601).

91795151 is a wasteful number, since it uses less digits than its factorization.

91795151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113600.

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

The square root of 91795151 is about 9580.9786034622. The cubic root of 91795151 is about 451.1004360037.

The spelling of 91795151 in words is "ninety-one million, seven hundred ninety-five thousand, one hundred fifty-one".