125641165439 has 2 divisors, whose sum is σ = 125641165440. Its totient is φ = 125641165438.

The previous prime is 125641165289. The next prime is 125641165471. The reversal of 125641165439 is 934561146521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125641165439 - 2²⁰ = 125640116863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125641165393 and 125641165402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125541165439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62820582719 + 62820582720.

It is an arithmetic number, because the mean of its divisors is an integer number (62820582720).

Almost surely, 2^125641165439 is an apocalyptic number.

125641165439 is a deficient number, since it is larger than the sum of its proper divisors (1).

125641165439 is an equidigital number, since it uses as much as digits as its factorization.

125641165439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 47.

The spelling of 125641165439 in words is "one hundred twenty-five billion, six hundred forty-one million, one hundred sixty-five thousand, four hundred thirty-nine".