91419252 has 48 divisors (see below), whose sum is σ = 221538240. Its totient is φ = 29306368.

The previous prime is 91419239. The next prime is 91419311. The reversal of 91419252 is 25291419.

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, 153868 + ... + 154460.

It is an arithmetic number, because the mean of its divisors is an integer number (4615380).

Almost surely, 2^91419252 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 91419252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110769120).

91419252 is an abundant number, since it is smaller than the sum of its proper divisors (130118988).

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

91419252 is a wasteful number, since it uses less digits than its factorization.

91419252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1070 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 91419252 is about 9561.3415376714. The cubic root of 91419252 is about 450.4838450101.

The spelling of 91419252 in words is "ninety-one million, four hundred nineteen thousand, two hundred fifty-two".