125351815759 has 2 divisors, whose sum is σ = 125351815760. Its totient is φ = 125351815758.

The previous prime is 125351815703. The next prime is 125351815777. The reversal of 125351815759 is 957518153521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125351815759 - 2²³ = 125343427151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125351818759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62675907879 + 62675907880.

It is an arithmetic number, because the mean of its divisors is an integer number (62675907880).

Almost surely, 2^125351815759 is an apocalyptic number.

125351815759 is a deficient number, since it is larger than the sum of its proper divisors (1).

125351815759 is an equidigital number, since it uses as much as digits as its factorization.

125351815759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890000, while the sum is 52.

The spelling of 125351815759 in words is "one hundred twenty-five billion, three hundred fifty-one million, eight hundred fifteen thousand, seven hundred fifty-nine".