99134590 has 32 divisors (see below), whose sum is σ = 193904640. Its totient is φ = 36352800.

The previous prime is 99134579. The next prime is 99134593. The reversal of 99134590 is 9543199.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99134593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526 + ... + 14305.

It is an arithmetic number, because the mean of its divisors is an integer number (6059520).

Almost surely, 2^99134590 is an apocalyptic number.

99134590 is a deficient number, since it is larger than the sum of its proper divisors (94770050).

99134590 is a wasteful number, since it uses less digits than its factorization.

99134590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16888.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 99134590 is about 9956.6354759025. The cubic root of 99134590 is about 462.8160430570.

It can be divided in two parts, 99 and 134590, that added together give a square (134689 = 367²).

The spelling of 99134590 in words is "ninety-nine million, one hundred thirty-four thousand, five hundred ninety".