125412556751 has 2 divisors, whose sum is σ = 125412556752. Its totient is φ = 125412556750.

The previous prime is 125412556669. The next prime is 125412556873. The reversal of 125412556751 is 157655214521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125412556751 - 2²² = 125408362447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125412556051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62706278375 + 62706278376.

It is an arithmetic number, because the mean of its divisors is an integer number (62706278376).

Almost surely, 2^125412556751 is an apocalyptic number.

125412556751 is a deficient number, since it is larger than the sum of its proper divisors (1).

125412556751 is an equidigital number, since it uses as much as digits as its factorization.

125412556751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420000, while the sum is 44.

The spelling of 125412556751 in words is "one hundred twenty-five billion, four hundred twelve million, five hundred fifty-six thousand, seven hundred fifty-one".