99158634 has 16 divisors (see below), whose sum is σ = 220352640. Its totient is φ = 33052860.

The previous prime is 99158599. The next prime is 99158641. The reversal of 99158634 is 43685199.

It is a happy number.

99158634 is a `hidden beast` number, since 9 + 9 + 1 + 5 + 8 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 99158634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918082 + ... + 918189.

It is an arithmetic number, because the mean of its divisors is an integer number (13772040).

Almost surely, 2^99158634 is an apocalyptic number.

99158634 is an abundant number, since it is smaller than the sum of its proper divisors (121194006).

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

99158634 is a wasteful number, since it uses less digits than its factorization.

99158634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836282 (or 1836276 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 99158634 is about 9957.8428386875. The cubic root of 99158634 is about 462.8534570057.

The spelling of 99158634 in words is "ninety-nine million, one hundred fifty-eight thousand, six hundred thirty-four".