158899490 has 16 divisors (see below), whose sum is σ = 295246080. Its totient is φ = 61509360.

The previous prime is 158899487. The next prime is 158899513. The reversal of 158899490 is 94998851.

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, 255980 + ... + 256599.

It is an arithmetic number, because the mean of its divisors is an integer number (18452880).

Almost surely, 2^158899490 is an apocalyptic number.

158899490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158899490 is a deficient number, since it is larger than the sum of its proper divisors (136346590).

158899490 is a wasteful number, since it uses less digits than its factorization.

158899490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512617.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 158899490 is about 12605.5341021315. The cubic root of 158899490 is about 541.6359737507.

The spelling of 158899490 in words is "one hundred fifty-eight million, eight hundred ninety-nine thousand, four hundred ninety".