99138934 has 16 divisors (see below), whose sum is σ = 157739616. Its totient is φ = 46569600.

The previous prime is 99138929. The next prime is 99138953. The reversal of 99138934 is 43983199.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19144 + ... + 23764.

It is an arithmetic number, because the mean of its divisors is an integer number (9858726).

Almost surely, 2^99138934 is an apocalyptic number.

99138934 is a deficient number, since it is larger than the sum of its proper divisors (58600682).

99138934 is a wasteful number, since it uses less digits than its factorization.

99138934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271.

The product of its digits is 209952, while the sum is 46.

The square root of 99138934 is about 9956.8536194925. The cubic root of 99138934 is about 462.8228030369.

The spelling of 99138934 in words is "ninety-nine million, one hundred thirty-eight thousand, nine hundred thirty-four".