91407051 has 6 divisors (see below), whose sum is σ = 132032420. Its totient is φ = 60938028.

The previous prime is 91407013. The next prime is 91407059. The reversal of 91407051 is 15070419.

It is not a de Polignac number, because 91407051 - 2¹⁰ = 91406027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91407059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5078161 + ... + 5078178.

Almost surely, 2^91407051 is an apocalyptic number.

91407051 is a deficient number, since it is larger than the sum of its proper divisors (40625369).

91407051 is a wasteful number, since it uses less digits than its factorization.

91407051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156345 (or 10156342 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 91407051 is about 9560.7034783012. The cubic root of 91407051 is about 450.4638032873.

The spelling of 91407051 in words is "ninety-one million, four hundred seven thousand, fifty-one".