125247413 has 2 divisors, whose sum is σ = 125247414. Its totient is φ = 125247412.

The previous prime is 125247391. The next prime is 125247439. The reversal of 125247413 is 314742521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98446084 + 26801329 = 9922^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 125247413 - 2⁶ = 125247349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125247613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62623706 + 62623707.

It is an arithmetic number, because the mean of its divisors is an integer number (62623707).

Almost surely, 2^125247413 is an apocalyptic number.

It is an amenable number.

125247413 is a deficient number, since it is larger than the sum of its proper divisors (1).

125247413 is an equidigital number, since it uses as much as digits as its factorization.

125247413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 125247413 is about 11191.3990635666. The cubic root of 125247413 is about 500.3296665921.

Adding to 125247413 its reverse (314742521), we get a palindrome (439989934).

It can be divided in two parts, 12 and 5247413, that added together give a palindrome (5247425).

The spelling of 125247413 in words is "one hundred twenty-five million, two hundred forty-seven thousand, four hundred thirteen".