158077685 has 16 divisors (see below), whose sum is σ = 194628096. Its totient is φ = 123197568.

The previous prime is 158077681. The next prime is 158077709. The reversal of 158077685 is 586770851.

It is a happy number.

158077685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 158077685 - 2² = 158077681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158077681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53312 + ... + 56198.

It is an arithmetic number, because the mean of its divisors is an integer number (12164256).

Almost surely, 2^158077685 is an apocalyptic number.

It is an amenable number.

158077685 is a deficient number, since it is larger than the sum of its proper divisors (36550411).

158077685 is a wasteful number, since it uses less digits than its factorization.

158077685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 470400, while the sum is 47.

The square root of 158077685 is about 12572.8948536127. The cubic root of 158077685 is about 540.7006052615.

The spelling of 158077685 in words is "one hundred fifty-eight million, seventy-seven thousand, six hundred eighty-five".