158897311 has 2 divisors, whose sum is σ = 158897312. Its totient is φ = 158897310.

The previous prime is 158897287. The next prime is 158897357. The reversal of 158897311 is 113798851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158897311 - 2⁵ = 158897279 is a prime.

It is equal to p_8915974 and since 158897311 and 8915974 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158897381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79448655 + 79448656.

It is an arithmetic number, because the mean of its divisors is an integer number (79448656).

Almost surely, 2^158897311 is an apocalyptic number.

158897311 is a deficient number, since it is larger than the sum of its proper divisors (1).

158897311 is an equidigital number, since it uses as much as digits as its factorization.

158897311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 43.

The square root of 158897311 is about 12605.4476715426. The cubic root of 158897311 is about 541.6334979085.

The spelling of 158897311 in words is "one hundred fifty-eight million, eight hundred ninety-seven thousand, three hundred eleven".