91410051 has 4 divisors (see below), whose sum is σ = 121880072. Its totient is φ = 60940032.

The previous prime is 91410047. The next prime is 91410079. The reversal of 91410051 is 15001419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15001419 = 3 ⋅5000473.

It is not a de Polignac number, because 91410051 - 2² = 91410047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91410251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15235006 + ... + 15235011.

It is an arithmetic number, because the mean of its divisors is an integer number (30470018).

Almost surely, 2^91410051 is an apocalyptic number.

91410051 is a deficient number, since it is larger than the sum of its proper divisors (30470021).

91410051 is a wasteful number, since it uses less digits than its factorization.

91410051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30470020.

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

The square root of 91410051 is about 9560.8603692346. The cubic root of 91410051 is about 450.4687313412.

The spelling of 91410051 in words is "ninety-one million, four hundred ten thousand, fifty-one".