1369645199 has 16 divisors (see below), whose sum is σ = 1514217600. Its totient is φ = 1231117056.

The previous prime is 1369645181. The next prime is 1369645213. The reversal of 1369645199 is 9915469631.

It is a happy number.

It is not a de Polignac number, because 1369645199 - 2¹⁶ = 1369579663 is a prime.

It is a super-2 number, since 2×1369645199² = 3751855942287499202, which contains 22 as substring.

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 1369645199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369645129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65837 + ... + 84105.

It is an arithmetic number, because the mean of its divisors is an integer number (94638600).

Almost surely, 2^1369645199 is an apocalyptic number.

1369645199 is a deficient number, since it is larger than the sum of its proper divisors (144572401).

1369645199 is a wasteful number, since it uses less digits than its factorization.

1369645199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18434.

The product of its digits is 1574640, while the sum is 53.

The square root of 1369645199 is about 37008.7178783594. The cubic root of 1369645199 is about 1110.5446557353.

The spelling of 1369645199 in words is "one billion, three hundred sixty-nine million, six hundred forty-five thousand, one hundred ninety-nine".