158057831 has 2 divisors, whose sum is σ = 158057832. Its totient is φ = 158057830.

The previous prime is 158057791. The next prime is 158057833. The reversal of 158057831 is 138750851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158057831 - 2¹⁰ = 158056807 is a prime.

It is a super-2 number, since 2×158057831² = 49964555880849122, which contains 22 as substring.

Together with 158057833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158057833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79028915 + 79028916.

It is an arithmetic number, because the mean of its divisors is an integer number (79028916).

Almost surely, 2^158057831 is an apocalyptic number.

158057831 is a deficient number, since it is larger than the sum of its proper divisors (1).

158057831 is an equidigital number, since it uses as much as digits as its factorization.

158057831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 38.

The square root of 158057831 is about 12572.1052731832. The cubic root of 158057831 is about 540.6779676171.

The spelling of 158057831 in words is "one hundred fifty-eight million, fifty-seven thousand, eight hundred thirty-one".