125315413 has 2 divisors, whose sum is σ = 125315414. Its totient is φ = 125315412.

The previous prime is 125315387. The next prime is 125315417. The reversal of 125315413 is 314513521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75655204 + 49660209 = 8698^2 + 7047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125315413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125315417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62657706 + 62657707.

It is an arithmetic number, because the mean of its divisors is an integer number (62657707).

Almost surely, 2^125315413 is an apocalyptic number.

It is an amenable number.

125315413 is a deficient number, since it is larger than the sum of its proper divisors (1).

125315413 is an equidigital number, since it uses as much as digits as its factorization.

125315413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 125315413 is about 11194.4366986463. The cubic root of 125315413 is about 500.4201974360.

Adding to 125315413 its reverse (314513521), we get a palindrome (439828934).

The spelling of 125315413 in words is "one hundred twenty-five million, three hundred fifteen thousand, four hundred thirteen".