1373866099 has 2 divisors, whose sum is σ = 1373866100. Its totient is φ = 1373866098.

The previous prime is 1373866069. The next prime is 1373866139. The reversal of 1373866099 is 9906683731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1373866099 - 2²⁵ = 1340311667 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373866019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686933049 + 686933050.

It is an arithmetic number, because the mean of its divisors is an integer number (686933050).

Almost surely, 2^1373866099 is an apocalyptic number.

1373866099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373866099 is an equidigital number, since it uses as much as digits as its factorization.

1373866099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 1373866099 is about 37065.6997640676. The cubic root of 1373866099 is about 1111.6842917375.

The spelling of 1373866099 in words is "one billion, three hundred seventy-three million, eight hundred sixty-six thousand, ninety-nine".