99137490 has 32 divisors (see below), whose sum is σ = 238222080. Its totient is φ = 26404224.

The previous prime is 99137471. The next prime is 99137503. The reversal of 99137490 is 9473199.

It is a Curzon 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, 32407 + ... + 35333.

It is an arithmetic number, because the mean of its divisors is an integer number (7444440).

Almost surely, 2^99137490 is an apocalyptic number.

99137490 is an abundant number, since it is smaller than the sum of its proper divisors (139084590).

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

99137490 is a wasteful number, since it uses less digits than its factorization.

99137490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 99137490 is about 9956.7811063616. The cubic root of 99137490 is about 462.8205559569.

The spelling of 99137490 in words is "ninety-nine million, one hundred thirty-seven thousand, four hundred ninety".