3126742225 has 12 divisors (see below), whose sum is σ = 3886938844. Its totient is φ = 2495085120.

The previous prime is 3126742217. The next prime is 3126742237. The reversal of 3126742225 is 5222476213.

It can be written as a sum of positive squares in 6 ways, for example, as 482417296 + 2644324929 = 21964^2 + 51423^2 .

It is not a de Polignac number, because 3126742225 - 2³ = 3126742217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 147594 + ... + 167443.

Almost surely, 2^3126742225 is an apocalyptic number.

It is an amenable number.

3126742225 is a deficient number, since it is larger than the sum of its proper divisors (760196619).

3126742225 is a wasteful number, since it uses less digits than its factorization.

3126742225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315444 (or 315439 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 3126742225 is about 55917.2802003102. The cubic root of 3126742225 is about 1462.2805144604.

The spelling of 3126742225 in words is "three billion, one hundred twenty-six million, seven hundred forty-two thousand, two hundred twenty-five".