91481022 has 32 divisors (see below), whose sum is σ = 210304800. Its totient is φ = 29441664.

The previous prime is 91481017. The next prime is 91481059. The reversal of 91481022 is 22018419.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27643 + ... + 30774.

It is an arithmetic number, because the mean of its divisors is an integer number (6572025).

Almost surely, 2^91481022 is an apocalyptic number.

91481022 is an abundant number, since it is smaller than the sum of its proper divisors (118823778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91481022 is a wasteful number, since it uses less digits than its factorization.

91481022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58457 (or 58451 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 91481022 is about 9564.5711874605. The cubic root of 91481022 is about 450.5852828788.

The spelling of 91481022 in words is "ninety-one million, four hundred eighty-one thousand, twenty-two".