158315499 has 16 divisors (see below), whose sum is σ = 235952640. Its totient is φ = 104908680.

The previous prime is 158315491. The next prime is 158315513. The reversal of 158315499 is 994513851.

158315499 is a `hidden beast` number, since 158 + 3 + 1 + 5 + 499 = 666.

It is not a de Polignac number, because 158315499 - 2³ = 158315491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158315491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13047 + ... + 22064.

It is an arithmetic number, because the mean of its divisors is an integer number (14747040).

Almost surely, 2^158315499 is an apocalyptic number.

158315499 is a deficient number, since it is larger than the sum of its proper divisors (77637141).

158315499 is a wasteful number, since it uses less digits than its factorization.

158315499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35287 (or 35281 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 158315499 is about 12582.3487076142. The cubic root of 158315499 is about 540.9716149350.

The spelling of 158315499 in words is "one hundred fifty-eight million, three hundred fifteen thousand, four hundred ninety-nine".