125271571 has 2 divisors, whose sum is σ = 125271572. Its totient is φ = 125271570.

The previous prime is 125271569. The next prime is 125271583. The reversal of 125271571 is 175172521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125271571 - 2¹ = 125271569 is a prime.

Together with 125271569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125271071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62635785 + 62635786.

It is an arithmetic number, because the mean of its divisors is an integer number (62635786).

Almost surely, 2^125271571 is an apocalyptic number.

125271571 is a deficient number, since it is larger than the sum of its proper divisors (1).

125271571 is an equidigital number, since it uses as much as digits as its factorization.

125271571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4900, while the sum is 31.

The square root of 125271571 is about 11192.4783225164. The cubic root of 125271571 is about 500.3618327576.

The spelling of 125271571 in words is "one hundred twenty-five million, two hundred seventy-one thousand, five hundred seventy-one".