1372506565 has 16 divisors (see below), whose sum is σ = 1658681136. Its totient is φ = 1090252800.

The previous prime is 1372506547. The next prime is 1372506571. The reversal of 1372506565 is 5656052731.

1372506565 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 588450564 + 784056001 = 24258^2 + 28001^2 .

It is not a de Polignac number, because 1372506565 - 2⁷ = 1372506437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438205 + ... + 441325.

It is an arithmetic number, because the mean of its divisors is an integer number (103667571).

Almost surely, 2^1372506565 is an apocalyptic number.

It is an amenable number.

1372506565 is a deficient number, since it is larger than the sum of its proper divisors (286174571).

1372506565 is a wasteful number, since it uses less digits than its factorization.

1372506565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 1372506565 is about 37047.3557086062. The cubic root of 1372506565 is about 1111.3174749609.

The spelling of 1372506565 in words is "one billion, three hundred seventy-two million, five hundred six thousand, five hundred sixty-five".