1379851199 has 4 divisors (see below), whose sum is σ = 1424362560. Its totient is φ = 1335339840.

The previous prime is 1379851181. The next prime is 1379851279. The reversal of 1379851199 is 9911589731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1379851199 - 2²⁸ = 1111415743 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 1379851199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379851129) 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, 22255634 + ... + 22255695.

It is an arithmetic number, because the mean of its divisors is an integer number (356090640).

Almost surely, 2^1379851199 is an apocalyptic number.

1379851199 is a deficient number, since it is larger than the sum of its proper divisors (44511361).

1379851199 is an equidigital number, since it uses as much as digits as its factorization.

1379851199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44511360.

The product of its digits is 612360, while the sum is 53.

The square root of 1379851199 is about 37146.3483938866. The cubic root of 1379851199 is about 1113.2962642488.

The spelling of 1379851199 in words is "one billion, three hundred seventy-nine million, eight hundred fifty-one thousand, one hundred ninety-nine".