158708042 has 4 divisors (see below), whose sum is σ = 238062066. Its totient is φ = 79354020.

The previous prime is 158708029. The next prime is 158708051. The reversal of 158708042 is 240807851.

158708042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124121881 + 34586161 = 11141^2 + 5881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158707993 and 158708011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39677009 + ... + 39677012.

Almost surely, 2^158708042 is an apocalyptic number.

158708042 is a deficient number, since it is larger than the sum of its proper divisors (79354024).

158708042 is an equidigital number, since it uses as much as digits as its factorization.

158708042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79354023.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 158708042 is about 12597.9380058802. The cubic root of 158708042 is about 541.4183586259.

The spelling of 158708042 in words is "one hundred fifty-eight million, seven hundred eight thousand, forty-two".