158072158 has 4 divisors (see below), whose sum is σ = 237108240. Its totient is φ = 79036078.

The previous prime is 158072147. The next prime is 158072203. The reversal of 158072158 is 851270851.

158072158 is nontrivially palindromic in base 15.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39518038 + ... + 39518041.

It is an arithmetic number, because the mean of its divisors is an integer number (59277060).

Almost surely, 2^158072158 is an apocalyptic number.

158072158 is a deficient number, since it is larger than the sum of its proper divisors (79036082).

158072158 is an equidigital number, since it uses as much as digits as its factorization.

158072158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79036081.

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 158072158 is about 12572.6750534642. The cubic root of 158072158 is about 540.6943035349.

The spelling of 158072158 in words is "one hundred fifty-eight million, seventy-two thousand, one hundred fifty-eight".