1372713409 has 16 divisors (see below), whose sum is σ = 1423319040. Its totient is φ = 1323241920.

The previous prime is 1372713359. The next prime is 1372713421. The reversal of 1372713409 is 9043172731.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1372713409 - 2¹⁹ = 1372189121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372713479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732744 + ... + 734614.

It is an arithmetic number, because the mean of its divisors is an integer number (88957440).

Almost surely, 2^1372713409 is an apocalyptic number.

It is an amenable number.

1372713409 is a deficient number, since it is larger than the sum of its proper divisors (50605631).

1372713409 is a wasteful number, since it uses less digits than its factorization.

1372713409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1372713409 is about 37050.1472196805. The cubic root of 1372713409 is about 1111.3732992975.

The spelling of 1372713409 in words is "one billion, three hundred seventy-two million, seven hundred thirteen thousand, four hundred nine".