125137501271 has 2 divisors, whose sum is σ = 125137501272. Its totient is φ = 125137501270.

The previous prime is 125137501253. The next prime is 125137501283. The reversal of 125137501271 is 172105731521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125137501271 - 2²² = 125133306967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125137501471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62568750635 + 62568750636.

It is an arithmetic number, because the mean of its divisors is an integer number (62568750636).

Almost surely, 2^125137501271 is an apocalyptic number.

125137501271 is a deficient number, since it is larger than the sum of its proper divisors (1).

125137501271 is an equidigital number, since it uses as much as digits as its factorization.

125137501271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 125137501271 in words is "one hundred twenty-five billion, one hundred thirty-seven million, five hundred one thousand, two hundred seventy-one".