99158457 has 8 divisors (see below), whose sum is σ = 133099200. Its totient is φ = 65661680.

The previous prime is 99158447. The next prime is 99158503. The reversal of 99158457 is 75485199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99158457 - 2⁴ = 99158441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99158407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110469 + ... + 111362.

It is an arithmetic number, because the mean of its divisors is an integer number (16637400).

Almost surely, 2^99158457 is an apocalyptic number.

It is an amenable number.

99158457 is a deficient number, since it is larger than the sum of its proper divisors (33940743).

99158457 is a wasteful number, since it uses less digits than its factorization.

99158457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221983.

The product of its digits is 453600, while the sum is 48.

The square root of 99158457 is about 9957.8339512165. The cubic root of 99158457 is about 462.8531816049.

The spelling of 99158457 in words is "ninety-nine million, one hundred fifty-eight thousand, four hundred fifty-seven".