158971357 has 2 divisors, whose sum is σ = 158971358. Its totient is φ = 158971356.

The previous prime is 158971339. The next prime is 158971367. The reversal of 158971357 is 753179851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121749156 + 37222201 = 11034^2 + 6101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158971357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158971367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79485678 + 79485679.

It is an arithmetic number, because the mean of its divisors is an integer number (79485679).

Almost surely, 2^158971357 is an apocalyptic number.

It is an amenable number.

158971357 is a deficient number, since it is larger than the sum of its proper divisors (1).

158971357 is an equidigital number, since it uses as much as digits as its factorization.

158971357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 46.

The square root of 158971357 is about 12608.3843929347. The cubic root of 158971357 is about 541.7176184129.

The spelling of 158971357 in words is "one hundred fifty-eight million, nine hundred seventy-one thousand, three hundred fifty-seven".