125415313 has 2 divisors, whose sum is σ = 125415314. Its totient is φ = 125415312.

The previous prime is 125415299. The next prime is 125415319. The reversal of 125415313 is 313514521.

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., 125260864 + 154449 = 11192^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 125415313 - 2⁵ = 125415281 is a prime.

It is not a weakly prime, because it can be changed into another prime (125415319) 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, 62707656 + 62707657.

It is an arithmetic number, because the mean of its divisors is an integer number (62707657).

Almost surely, 2^125415313 is an apocalyptic number.

It is an amenable number.

125415313 is a deficient number, since it is larger than the sum of its proper divisors (1).

125415313 is an equidigital number, since it uses as much as digits as its factorization.

125415313 is an odious number, because the sum of its binary digits is odd.

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

The square root of 125415313 is about 11198.8978475562. The cubic root of 125415313 is about 500.5531385166.

Adding to 125415313 its reverse (313514521), we get a palindrome (438929834).

The spelling of 125415313 in words is "one hundred twenty-five million, four hundred fifteen thousand, three hundred thirteen".