125715313 has 2 divisors, whose sum is σ = 125715314. Its totient is φ = 125715312.

The previous prime is 125715301. The next prime is 125715341. The reversal of 125715313 is 313517521.

It is an a-pointer prime, because the next prime (125715341) can be obtained adding 125715313 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109579024 + 16136289 = 10468^2 + 4017^2 .

It is a cyclic number.

It is not a de Polignac number, because 125715313 - 2⁵ = 125715281 is a prime.

It is not a weakly prime, because it can be changed into another prime (125715413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62857656 + 62857657.

It is an arithmetic number, because the mean of its divisors is an integer number (62857657).

Almost surely, 2^125715313 is an apocalyptic number.

It is an amenable number.

125715313 is a deficient number, since it is larger than the sum of its proper divisors (1).

125715313 is an equidigital number, since it uses as much as digits as its factorization.

125715313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 28.

The square root of 125715313 is about 11212.2840224461. The cubic root of 125715313 is about 500.9519371478.

The spelling of 125715313 in words is "one hundred twenty-five million, seven hundred fifteen thousand, three hundred thirteen".