125688679 has 2 divisors, whose sum is σ = 125688680. Its totient is φ = 125688678.

The previous prime is 125688671. The next prime is 125688749. The reversal of 125688679 is 976886521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125688679 - 2³ = 125688671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125688671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62844339 + 62844340.

It is an arithmetic number, because the mean of its divisors is an integer number (62844340).

Almost surely, 2^125688679 is an apocalyptic number.

125688679 is a deficient number, since it is larger than the sum of its proper divisors (1).

125688679 is an equidigital number, since it uses as much as digits as its factorization.

125688679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 52.

The square root of 125688679 is about 11211.0962443465. The cubic root of 125688679 is about 500.9165574848.

The spelling of 125688679 in words is "one hundred twenty-five million, six hundred eighty-eight thousand, six hundred seventy-nine".