125143313 has 2 divisors, whose sum is σ = 125143314. Its totient is φ = 125143312.

The previous prime is 125143309. The next prime is 125143321. The reversal of 125143313 is 313341521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68095504 + 57047809 = 8252^2 + 7553^2 .

It is a cyclic number.

It is not a de Polignac number, because 125143313 - 2² = 125143309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (125143303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62571656 + 62571657.

It is an arithmetic number, because the mean of its divisors is an integer number (62571657).

Almost surely, 2^125143313 is an apocalyptic number.

It is an amenable number.

125143313 is a deficient number, since it is larger than the sum of its proper divisors (1).

125143313 is an equidigital number, since it uses as much as digits as its factorization.

125143313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 125143313 is about 11186.7472037228. The cubic root of 125143313 is about 500.1910110203.

Adding to 125143313 its reverse (313341521), we get a palindrome (438484834).

The spelling of 125143313 in words is "one hundred twenty-five million, one hundred forty-three thousand, three hundred thirteen".