125774513 has 2 divisors, whose sum is σ = 125774514. Its totient is φ = 125774512.

The previous prime is 125774503. The next prime is 125774521. The reversal of 125774513 is 315477521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115068529 + 10705984 = 10727^2 + 3272^2 .

It is a cyclic number.

It is not a de Polignac number, because 125774513 - 2¹⁶ = 125708977 is a prime.

It is not a weakly prime, because it can be changed into another prime (125774503) 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, 62887256 + 62887257.

It is an arithmetic number, because the mean of its divisors is an integer number (62887257).

Almost surely, 2^125774513 is an apocalyptic number.

It is an amenable number.

125774513 is a deficient number, since it is larger than the sum of its proper divisors (1).

125774513 is an equidigital number, since it uses as much as digits as its factorization.

125774513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 125774513 is about 11214.9236733916. The cubic root of 125774513 is about 501.0305584393.

The spelling of 125774513 in words is "one hundred twenty-five million, seven hundred seventy-four thousand, five hundred thirteen".