125479657 has 2 divisors, whose sum is σ = 125479658. Its totient is φ = 125479656.

The previous prime is 125479643. The next prime is 125479681. The reversal of 125479657 is 756974521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116122176 + 9357481 = 10776^2 + 3059^2 .

It is a cyclic number.

It is not a de Polignac number, because 125479657 - 2¹¹ = 125477609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125479637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62739828 + 62739829.

It is an arithmetic number, because the mean of its divisors is an integer number (62739829).

Almost surely, 2^125479657 is an apocalyptic number.

It is an amenable number.

125479657 is a deficient number, since it is larger than the sum of its proper divisors (1).

125479657 is an equidigital number, since it uses as much as digits as its factorization.

125479657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 46.

The square root of 125479657 is about 11201.7702618827. The cubic root of 125479657 is about 500.6387263765.

The spelling of 125479657 in words is "one hundred twenty-five million, four hundred seventy-nine thousand, six hundred fifty-seven".