91104051 has 8 divisors (see below), whose sum is σ = 125660880. Its totient is φ = 58641632.

The previous prime is 91104043. The next prime is 91104061. The reversal of 91104051 is 15040119.

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 91104051 - 2³ = 91104043 is a prime.

It is a super-2 number, since 2×91104051² = 16599896217221202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91104061) 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, 523500 + ... + 523673.

It is an arithmetic number, because the mean of its divisors is an integer number (15707610).

Almost surely, 2^91104051 is an apocalyptic number.

91104051 is a deficient number, since it is larger than the sum of its proper divisors (34556829).

91104051 is a wasteful number, since it uses less digits than its factorization.

91104051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047205.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 91104051 is about 9544.8442103578. The cubic root of 91104051 is about 449.9655134065.

The spelling of 91104051 in words is "ninety-one million, one hundred four thousand, fifty-one".