2157150571 has 2 divisors, whose sum is σ = 2157150572. Its totient is φ = 2157150570.

The previous prime is 2157150563. The next prime is 2157150649. The reversal of 2157150571 is 1750517512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2157150571 - 2³ = 2157150563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2157150551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078575285 + 1078575286.

It is an arithmetic number, because the mean of its divisors is an integer number (1078575286).

Almost surely, 2^2157150571 is an apocalyptic number.

2157150571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157150571 is an equidigital number, since it uses as much as digits as its factorization.

2157150571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 34.

The square root of 2157150571 is about 46445.1350627813. The cubic root of 2157150571 is about 1292.0921464167.

The spelling of 2157150571 in words is "two billion, one hundred fifty-seven million, one hundred fifty thousand, five hundred seventy-one".