91411256 has 8 divisors (see below), whose sum is σ = 171396120. Its totient is φ = 45705624.

The previous prime is 91411241. The next prime is 91411279. The reversal of 91411256 is 65211419.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5713196 + ... + 5713211.

It is an arithmetic number, because the mean of its divisors is an integer number (21424515).

Almost surely, 2^91411256 is an apocalyptic number.

It is an amenable number.

91411256 is a deficient number, since it is larger than the sum of its proper divisors (79984864).

91411256 is a wasteful number, since it uses less digits than its factorization.

91411256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426413 (or 11426409 counting only the distinct ones).

The product of its digits is 2160, while the sum is 29.

The square root of 91411256 is about 9560.9233863681. The cubic root of 91411256 is about 450.4707107458.

The spelling of 91411256 in words is "ninety-one million, four hundred eleven thousand, two hundred fifty-six".