158434994 has 16 divisors (see below), whose sum is σ = 248315328. Its totient is φ = 75672432.

The previous prime is 158434993. The next prime is 158435021. The reversal of 158434994 is 499434851.

It is not an unprimeable number, because it can be changed into a prime (158434993) by changing a digit.

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, 41744 + ... + 45380.

It is an arithmetic number, because the mean of its divisors is an integer number (15519708).

Almost surely, 2^158434994 is an apocalyptic number.

158434994 is a deficient number, since it is larger than the sum of its proper divisors (89880334).

158434994 is a wasteful number, since it uses less digits than its factorization.

158434994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4609.

The product of its digits is 622080, while the sum is 47.

The square root of 158434994 is about 12587.0963291778. The cubic root of 158434994 is about 541.1076874111.

The spelling of 158434994 in words is "one hundred fifty-eight million, four hundred thirty-four thousand, nine hundred ninety-four".