125919440651 has 2 divisors, whose sum is σ = 125919440652. Its totient is φ = 125919440650.

The previous prime is 125919440627. The next prime is 125919440653. The reversal of 125919440651 is 156044919521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125919440651 - 2⁶ = 125919440587 is a prime.

It is a super-2 number, since 2×125919440651² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 125919440653, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125919440596 and 125919440605.

It is not a weakly prime, because it can be changed into another prime (125919440653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62959720325 + 62959720326.

It is an arithmetic number, because the mean of its divisors is an integer number (62959720326).

Almost surely, 2^125919440651 is an apocalyptic number.

125919440651 is a deficient number, since it is larger than the sum of its proper divisors (1).

125919440651 is an equidigital number, since it uses as much as digits as its factorization.

125919440651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 125919440651 in words is "one hundred twenty-five billion, nine hundred nineteen million, four hundred forty thousand, six hundred fifty-one".