91154752 has 42 divisors (see below), whose sum is σ = 195389754. Its totient is φ = 41944320.

The previous prime is 91154741. The next prime is 91154807. The reversal of 91154752 is 25745119.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 28047616 = 7944^2 + 5296^2 .

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 5 ways as a sum of consecutive naturals, for example, 275227 + ... + 275557.

It is an arithmetic number, because the mean of its divisors is an integer number (4652137).

Almost surely, 2^91154752 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 91154752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97694877).

91154752 is an abundant number, since it is smaller than the sum of its proper divisors (104235002).

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

91154752 is an equidigital number, since it uses as much as digits as its factorization.

91154752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 346 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The square root of 91154752 is about 9547.4997774286. The cubic root of 91154752 is about 450.0489691566.

The spelling of 91154752 in words is "ninety-one million, one hundred fifty-four thousand, seven hundred fifty-two".