1372643325 has 36 divisors (see below), whose sum is σ = 2603184948. Its totient is φ = 689011200.

The previous prime is 1372643323. The next prime is 1372643329. The reversal of 1372643325 is 5233462731.

1372643325 is a `hidden beast` number, since 1 + 3 + 7 + 2 + 643 + 3 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 25826724 + 1346816601 = 5082^2 + 36699^2 .

It is not a de Polignac number, because 1372643325 - 2¹ = 1372643323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1372643325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372643323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 175606 + ... + 183255.

It is an arithmetic number, because the mean of its divisors is an integer number (72310693).

Almost surely, 2^1372643325 is an apocalyptic number.

1372643325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1372643325 is a deficient number, since it is larger than the sum of its proper divisors (1230541623).

1372643325 is a wasteful number, since it uses less digits than its factorization.

1372643325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358894 (or 358886 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 1372643325 is about 37049.2014083975. The cubic root of 1372643325 is about 1111.3543852228.

It can be divided in two parts, 137 and 2643325, that added together give a palindrome (2643462).

The spelling of 1372643325 in words is "one billion, three hundred seventy-two million, six hundred forty-three thousand, three hundred twenty-five".