158671057 has 2 divisors, whose sum is σ = 158671058. Its totient is φ = 158671056.

The previous prime is 158671039. The next prime is 158671061. The reversal of 158671057 is 750176851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130782096 + 27888961 = 11436^2 + 5281^2 .

It is a cyclic number.

It is not a de Polignac number, because 158671057 - 2¹¹ = 158669009 is a prime.

It is not a weakly prime, because it can be changed into another prime (158671027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79335528 + 79335529.

It is an arithmetic number, because the mean of its divisors is an integer number (79335529).

Almost surely, 2^158671057 is an apocalyptic number.

It is an amenable number.

158671057 is a deficient number, since it is larger than the sum of its proper divisors (1).

158671057 is an equidigital number, since it uses as much as digits as its factorization.

158671057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 40.

The square root of 158671057 is about 12596.4700213989. The cubic root of 158671057 is about 541.3762983467.

The spelling of 158671057 in words is "one hundred fifty-eight million, six hundred seventy-one thousand, fifty-seven".