158890506 has 32 divisors (see below), whose sum is σ = 329469120. Its totient is φ = 51042816.

The previous prime is 158890493. The next prime is 158890549. The reversal of 158890506 is 605098851.

158890506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 20410 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (10295910).

Almost surely, 2^158890506 is an apocalyptic number.

158890506 is an abundant number, since it is smaller than the sum of its proper divisors (170578614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158890506 is a wasteful number, since it uses less digits than its factorization.

158890506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6838.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 158890506 is about 12605.1777456726. The cubic root of 158890506 is about 541.6257657269.

The spelling of 158890506 in words is "one hundred fifty-eight million, eight hundred ninety thousand, five hundred six".