157571 has 2 divisors, whose sum is σ = 157572. Its totient is φ = 157570.

The previous prime is 157561. The next prime is 157579. The reversal of 157571 is 175751.

157571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157571 is a prime.

It is equal to p₁₄₄₈₉ and since 157571 and 14489 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157571.

It is not a weakly prime, because it can be changed into another prime (157579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78785 + 78786.

It is an arithmetic number, because the mean of its divisors is an integer number (78786).

2¹⁵⁷⁵⁷¹ is an apocalyptic number.

157571 is a deficient number, since it is larger than the sum of its proper divisors (1).

157571 is an equidigital number, since it uses as much as digits as its factorization.

157571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1225, while the sum is 26.

The square root of 157571 is about 396.9521381729. The cubic root of 157571 is about 54.0122285977.

The spelling of 157571 in words is "one hundred fifty-seven thousand, five hundred seventy-one".