99331518 has 32 divisors (see below), whose sum is σ = 233396352. Its totient is φ = 27784800.

The previous prime is 99331513. The next prime is 99331541. The reversal of 99331518 is 81513399.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99331511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57028 + ... + 58743.

It is an arithmetic number, because the mean of its divisors is an integer number (7293636).

Almost surely, 2^99331518 is an apocalyptic number.

99331518 is an abundant number, since it is smaller than the sum of its proper divisors (134064834).

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

99331518 is a wasteful number, since it uses less digits than its factorization.

99331518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115800.

The product of its digits is 29160, while the sum is 39.

The square root of 99331518 is about 9966.5198539912. The cubic root of 99331518 is about 463.1222972591.

The spelling of 99331518 in words is "ninety-nine million, three hundred thirty-one thousand, five hundred eighteen".