1372226725 has 12 divisors (see below), whose sum is σ = 1702025860. Its totient is φ = 1097481600.

The previous prime is 1372226693. The next prime is 1372226731. The reversal of 1372226725 is 5276222731.

It can be written as a sum of positive squares in 6 ways, for example, as 23794884 + 1348431841 = 4878^2 + 36721^2 .

It is not a de Polignac number, because 1372226725 - 2⁵ = 1372226693 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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154711 + ... + 163339.

Almost surely, 2^1372226725 is an apocalyptic number.

It is an amenable number.

1372226725 is a deficient number, since it is larger than the sum of its proper divisors (329799135).

1372226725 is an equidigital number, since it uses as much as digits as its factorization.

1372226725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15000 (or 14995 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 1372226725 is about 37043.5787283032. The cubic root of 1372226725 is about 1111.2419410853.

The spelling of 1372226725 in words is "one billion, three hundred seventy-two million, two hundred twenty-six thousand, seven hundred twenty-five".