3182990725 has 12 divisors (see below), whose sum is σ = 3947819620. Its totient is φ = 2545804800.

The previous prime is 3182990719. The next prime is 3182990747. The reversal of 3182990725 is 5270992813.

It is a Cunningham number, because it is equal to 56418²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 249576804 + 2933413921 = 15798^2 + 54161^2 .

It is not a de Polignac number, because 3182990725 - 2³ = 3182990717 is a prime.

It is a congruent 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, 119971 + ... + 144079.

Almost surely, 2^3182990725 is an apocalyptic number.

It is an amenable number.

3182990725 is a deficient number, since it is larger than the sum of its proper divisors (764828895).

3182990725 is a wasteful number, since it uses less digits than its factorization.

3182990725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29400 (or 29395 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 3182990725 is about 56418.0000088624. Note that the first 5 decimals coincide. The cubic root of 3182990725 is about 1470.9970136377.

The spelling of 3182990725 in words is "three billion, one hundred eighty-two million, nine hundred ninety thousand, seven hundred twenty-five".