158306977 has 2 divisors, whose sum is σ = 158306978. Its totient is φ = 158306976.

The previous prime is 158306963. The next prime is 158306989. The reversal of 158306977 is 779603851.

158306977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134189056 + 24117921 = 11584^2 + 4911^2 .

It is a cyclic number.

It is not a de Polignac number, because 158306977 - 2²³ = 149918369 is a prime.

It is a super-2 number, since 2×158306977² = 50122197933757058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158306927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79153488 + 79153489.

It is an arithmetic number, because the mean of its divisors is an integer number (79153489).

Almost surely, 2^158306977 is an apocalyptic number.

It is an amenable number.

158306977 is a deficient number, since it is larger than the sum of its proper divisors (1).

158306977 is an equidigital number, since it uses as much as digits as its factorization.

158306977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 158306977 is about 12582.0100540414. The cubic root of 158306977 is about 540.9619080672.

The spelling of 158306977 in words is "one hundred fifty-eight million, three hundred six thousand, nine hundred seventy-seven".