91480451 has 4 divisors (see below), whose sum is σ = 96861672. Its totient is φ = 86099232.

The previous prime is 91480423. The next prime is 91480463. The reversal of 91480451 is 15408419.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91480451 - 2⁶ = 91480387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91480351) 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, 2690585 + ... + 2690618.

It is an arithmetic number, because the mean of its divisors is an integer number (24215418).

Almost surely, 2^91480451 is an apocalyptic number.

91480451 is a deficient number, since it is larger than the sum of its proper divisors (5381221).

91480451 is a wasteful number, since it uses less digits than its factorization.

91480451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381220.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 91480451 is about 9564.5413376701. The cubic root of 91480451 is about 450.5843453993.

The spelling of 91480451 in words is "ninety-one million, four hundred eighty thousand, four hundred fifty-one".