1373164209 has 12 divisors (see below), whose sum is σ = 1989841152. Its totient is φ = 912497400.

The previous prime is 1373164207. The next prime is 1373164241. The reversal of 1373164209 is 9024613731.

1373164209 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 1 + 642 + 0 + 9 = 666.

It is not a de Polignac number, because 1373164209 - 2¹ = 1373164207 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1373164207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242497 + ... + 248094.

It is an arithmetic number, because the mean of its divisors is an integer number (165820096).

Almost surely, 2^1373164209 is an apocalyptic number.

It is an amenable number.

1373164209 is a deficient number, since it is larger than the sum of its proper divisors (616676943).

1373164209 is a wasteful number, since it uses less digits than its factorization.

1373164209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490908 (or 490905 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 1373164209 is about 37056.2303668358. The cubic root of 1373164209 is about 1111.4949445602.

The spelling of 1373164209 in words is "one billion, three hundred seventy-three million, one hundred sixty-four thousand, two hundred nine".