99158456 has 8 divisors (see below), whose sum is σ = 185922120. Its totient is φ = 49579224.

The previous prime is 99158447. The next prime is 99158503. The reversal of 99158456 is 65485199.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 99158456.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6197396 + ... + 6197411.

It is an arithmetic number, because the mean of its divisors is an integer number (23240265).

Almost surely, 2^99158456 is an apocalyptic number.

It is an amenable number.

99158456 is a deficient number, since it is larger than the sum of its proper divisors (86763664).

99158456 is a wasteful number, since it uses less digits than its factorization.

99158456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394813 (or 12394809 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 99158456 is about 9957.8339010048. The cubic root of 99158456 is about 462.8531800490.

The spelling of 99158456 in words is "ninety-nine million, one hundred fifty-eight thousand, four hundred fifty-six".