158921042 has 8 divisors (see below), whose sum is σ = 272436096. Its totient is φ = 68109012.

The previous prime is 158921039. The next prime is 158921047. The reversal of 158921042 is 240129851.

158921042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (158921047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5675738 + ... + 5675765.

It is an arithmetic number, because the mean of its divisors is an integer number (34054512).

Almost surely, 2^158921042 is an apocalyptic number.

158921042 is a deficient number, since it is larger than the sum of its proper divisors (113515054).

158921042 is a wasteful number, since it uses less digits than its factorization.

158921042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11351512.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 158921042 is about 12606.3889357738. The cubic root of 158921042 is about 541.6604605311.

The spelling of 158921042 in words is "one hundred fifty-eight million, nine hundred twenty-one thousand, forty-two".