1372665506 has 8 divisors (see below), whose sum is σ = 2064134124. Its totient is φ = 684620800.

The previous prime is 1372665487. The next prime is 1372665509. The reversal of 1372665506 is 6055662731.

It can be written as a sum of positive squares in 2 ways, for example, as 1343882281 + 28783225 = 36659^2 + 5365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1372665509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854975 + ... + 856578.

Almost surely, 2^1372665506 is an apocalyptic number.

1372665506 is a deficient number, since it is larger than the sum of its proper divisors (691468618).

1372665506 is a wasteful number, since it uses less digits than its factorization.

1372665506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711956.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 1372665506 is about 37049.5007523718. The cubic root of 1372665506 is about 1111.3603714389.

The spelling of 1372665506 in words is "one billion, three hundred seventy-two million, six hundred sixty-five thousand, five hundred six".