3167221725 has 18 divisors (see below), whose sum is σ = 5672846426. Its totient is φ = 1689184800.

The previous prime is 3167221723. The next prime is 3167221763. The reversal of 3167221725 is 5271227613.

It can be written as a sum of positive squares in 3 ways, for example, as 492573636 + 2674648089 = 22194^2 + 51717^2 .

It is not a de Polignac number, because 3167221725 - 2¹ = 3167221723 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3167221725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3167221723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7038046 + ... + 7038495.

Almost surely, 2^3167221725 is an apocalyptic number.

It is an amenable number.

3167221725 is a deficient number, since it is larger than the sum of its proper divisors (2505624701).

3167221725 is a wasteful number, since it uses less digits than its factorization.

3167221725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076557 (or 14076549 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 3167221725 is about 56278.0749937309. The cubic root of 3167221725 is about 1468.5638131878.

The spelling of 3167221725 in words is "three billion, one hundred sixty-seven million, two hundred twenty-one thousand, seven hundred twenty-five".