125545313 has 2 divisors, whose sum is σ = 125545314. Its totient is φ = 125545312.

The previous prime is 125545307. The next prime is 125545351. The reversal of 125545313 is 313545521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107081104 + 18464209 = 10348^2 + 4297^2 .

It is an emirp because it is prime and its reverse (313545521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125545313 - 2⁴ = 125545297 is a prime.

It is not a weakly prime, because it can be changed into another prime (125545363) 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, 62772656 + 62772657.

It is an arithmetic number, because the mean of its divisors is an integer number (62772657).

Almost surely, 2^125545313 is an apocalyptic number.

It is an amenable number.

125545313 is a deficient number, since it is larger than the sum of its proper divisors (1).

125545313 is an equidigital number, since it uses as much as digits as its factorization.

125545313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 29.

The square root of 125545313 is about 11204.7004868493. The cubic root of 125545313 is about 500.7260292528.

The spelling of 125545313 in words is "one hundred twenty-five million, five hundred forty-five thousand, three hundred thirteen".