1372208017 has 4 divisors (see below), whose sum is σ = 1395465840. Its totient is φ = 1348950196.

The previous prime is 1372208009. The next prime is 1372208027. The reversal of 1372208017 is 7108022731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1372208017 - 2³ = 1372208009 is a prime.

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 1372208017.

It is not an unprimeable number, because it can be changed into a prime (1372208027) 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, 11628823 + ... + 11628940.

It is an arithmetic number, because the mean of its divisors is an integer number (348866460).

Almost surely, 2^1372208017 is an apocalyptic number.

It is an amenable number.

1372208017 is a deficient number, since it is larger than the sum of its proper divisors (23257823).

1372208017 is an equidigital number, since it uses as much as digits as its factorization.

1372208017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23257822.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 1372208017 is about 37043.3262140429. The cubic root of 1372208017 is about 1111.2368910917.

The spelling of 1372208017 in words is "one billion, three hundred seventy-two million, two hundred eight thousand, seventeen".