142158571 has 2 divisors, whose sum is σ = 142158572. Its totient is φ = 142158570.

The previous prime is 142158557. The next prime is 142158581. The reversal of 142158571 is 175851241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142158571 - 2²³ = 133769963 is a prime.

It is not a weakly prime, because it can be changed into another prime (142158581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71079285 + 71079286.

It is an arithmetic number, because the mean of its divisors is an integer number (71079286).

Almost surely, 2^142158571 is an apocalyptic number.

142158571 is a deficient number, since it is larger than the sum of its proper divisors (1).

142158571 is an equidigital number, since it uses as much as digits as its factorization.

142158571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 34.

The square root of 142158571 is about 11923.0269227239. The cubic root of 142158571 is about 521.9044698766.

The spelling of 142158571 in words is "one hundred forty-two million, one hundred fifty-eight thousand, five hundred seventy-one".