91541056 has 28 divisors (see below), whose sum is σ = 192339468. Its totient is φ = 43077632.

The previous prime is 91541011. The next prime is 91541083. The reversal of 91541056 is 65014519.

91541056 = 284² + 285² + ... + 667².

It can be written as a sum of positive squares in 2 ways, for example, as 74235456 + 17305600 = 8616^2 + 4160^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40981 + ... + 43156.

Almost surely, 2^91541056 is an apocalyptic number.

It is an amenable number.

91541056 is an abundant number, since it is smaller than the sum of its proper divisors (100798412).

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

91541056 is a wasteful number, since it uses less digits than its factorization.

91541056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84166 (or 84156 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 91541056 is about 9567.7090256759. The cubic root of 91541056 is about 450.6838261656.

The spelling of 91541056 in words is "ninety-one million, five hundred forty-one thousand, fifty-six".