158057231 has 2 divisors, whose sum is σ = 158057232. Its totient is φ = 158057230.

The previous prime is 158057209. The next prime is 158057233. The reversal of 158057231 is 132750851.

It is a strong prime.

It is an emirp because it is prime and its reverse (132750851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158057231 - 2⁶ = 158057167 is a prime.

It is a super-2 number, since 2×158057231² = 49964176542774722, which contains 22 as substring.

Together with 158057233, 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 (158057233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79028615 + 79028616.

It is an arithmetic number, because the mean of its divisors is an integer number (79028616).

Almost surely, 2^158057231 is an apocalyptic number.

158057231 is a deficient number, since it is larger than the sum of its proper divisors (1).

158057231 is an equidigital number, since it uses as much as digits as its factorization.

158057231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 158057231 is about 12572.0814108086. The cubic root of 158057231 is about 540.6772834641.

The spelling of 158057231 in words is "one hundred fifty-eight million, fifty-seven thousand, two hundred thirty-one".