158525831 has 2 divisors, whose sum is σ = 158525832. Its totient is φ = 158525830.

The previous prime is 158525771. The next prime is 158525837. The reversal of 158525831 is 138525851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158525831 - 2²⁶ = 91416967 is a prime.

It is a super-2 number, since 2×158525831² = 50260878188481122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158525837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79262915 + 79262916.

It is an arithmetic number, because the mean of its divisors is an integer number (79262916).

Almost surely, 2^158525831 is an apocalyptic number.

158525831 is a deficient number, since it is larger than the sum of its proper divisors (1).

158525831 is an equidigital number, since it uses as much as digits as its factorization.

158525831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 38.

The square root of 158525831 is about 12590.7041502848. The cubic root of 158525831 is about 541.2110804117.

The spelling of 158525831 in words is "one hundred fifty-eight million, five hundred twenty-five thousand, eight hundred thirty-one".