91496251 has 8 divisors (see below), whose sum is σ = 114073344. Its totient is φ = 71295720.

The previous prime is 91496243. The next prime is 91496257. The reversal of 91496251 is 15269419.

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 91496251 - 2³ = 91496243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91496251.

It is not an unprimeable number, because it can be changed into a prime (91496257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594055 + ... + 594208.

It is an arithmetic number, because the mean of its divisors is an integer number (14259168).

Almost surely, 2^91496251 is an apocalyptic number.

91496251 is a deficient number, since it is larger than the sum of its proper divisors (22577093).

91496251 is a wasteful number, since it uses less digits than its factorization.

91496251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188281.

The product of its digits is 19440, while the sum is 37.

The square root of 91496251 is about 9565.3672694779. The cubic root of 91496251 is about 450.6102847221.

It can be divided in two parts, 9149 and 6251, that added together give a triangular number (15400 = T₁₇₅).

The spelling of 91496251 in words is "ninety-one million, four hundred ninety-six thousand, two hundred fifty-one".