91145382 has 16 divisors (see below), whose sum is σ = 183995712. Its totient is φ = 30097640.

The previous prime is 91145359. The next prime is 91145401. The reversal of 91145382 is 28354119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70344 + ... + 71627.

It is an arithmetic number, because the mean of its divisors is an integer number (11499732).

Almost surely, 2^91145382 is an apocalyptic number.

91145382 is an abundant number, since it is smaller than the sum of its proper divisors (92850330).

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

91145382 is a wasteful number, since it uses less digits than its factorization.

91145382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142083.

The product of its digits is 8640, while the sum is 33.

The square root of 91145382 is about 9547.0090604335. The cubic root of 91145382 is about 450.0335481162.

The spelling of 91145382 in words is "ninety-one million, one hundred forty-five thousand, three hundred eighty-two".