158164571 has 2 divisors, whose sum is σ = 158164572. Its totient is φ = 158164570.

The previous prime is 158164519. The next prime is 158164609. The reversal of 158164571 is 175461851.

It is an a-pointer prime, because the next prime (158164609) can be obtained adding 158164571 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158164571 - 2¹⁰ = 158163547 is a prime.

It is a super-2 number, since 2×158164571² = 50032063039228082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158164771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79082285 + 79082286.

It is an arithmetic number, because the mean of its divisors is an integer number (79082286).

Almost surely, 2^158164571 is an apocalyptic number.

158164571 is a deficient number, since it is larger than the sum of its proper divisors (1).

158164571 is an equidigital number, since it uses as much as digits as its factorization.

158164571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 38.

The square root of 158164571 is about 12576.3496691210. The cubic root of 158164571 is about 540.7996508841.

The spelling of 158164571 in words is "one hundred fifty-eight million, one hundred sixty-four thousand, five hundred seventy-one".