125132637563 has 2 divisors, whose sum is σ = 125132637564. Its totient is φ = 125132637562.

The previous prime is 125132637517. The next prime is 125132637571. The reversal of 125132637563 is 365736231521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125132637563 - 2²² = 125128443259 is a prime.

It is not a weakly prime, because it can be changed into another prime (125132637503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62566318781 + 62566318782.

It is an arithmetic number, because the mean of its divisors is an integer number (62566318782).

Almost surely, 2^125132637563 is an apocalyptic number.

125132637563 is a deficient number, since it is larger than the sum of its proper divisors (1).

125132637563 is an equidigital number, since it uses as much as digits as its factorization.

125132637563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 44.

The spelling of 125132637563 in words is "one hundred twenty-five billion, one hundred thirty-two million, six hundred thirty-seven thousand, five hundred sixty-three".