91504512 has 256 divisors, whose sum is σ = 308448000. Its totient is φ = 26449920.

The previous prime is 91504499. The next prime is 91504561. The reversal of 91504512 is 21540519.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102423 + ... + 1102505.

It is an arithmetic number, because the mean of its divisors is an integer number (1204875).

Almost surely, 2^91504512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91504512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154224000).

91504512 is an abundant number, since it is smaller than the sum of its proper divisors (216943488).

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

91504512 is a wasteful number, since it uses less digits than its factorization.

91504512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 91504512 is about 9565.7990779652. The cubic root of 91504512 is about 450.6238458589.

The spelling of 91504512 in words is "ninety-one million, five hundred four thousand, five hundred twelve".