158615379 has 24 divisors (see below), whose sum is σ = 251400240. Its totient is φ = 95764032.

The previous prime is 158615341. The next prime is 158615393. The reversal of 158615379 is 973516851.

It is a happy number.

158615379 is a `hidden beast` number, since 1 + 58 + 61 + 537 + 9 = 666.

158615379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158615379 - 2²¹ = 156518227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158615309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6589 + ... + 18990.

It is an arithmetic number, because the mean of its divisors is an integer number (10475010).

Almost surely, 2^158615379 is an apocalyptic number.

158615379 is a deficient number, since it is larger than the sum of its proper divisors (92784861).

158615379 is a wasteful number, since it uses less digits than its factorization.

158615379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25651 (or 25648 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 158615379 is about 12594.2597638766. The cubic root of 158615379 is about 541.3129675865.

The spelling of 158615379 in words is "one hundred fifty-eight million, six hundred fifteen thousand, three hundred seventy-nine".