1399157199 has 16 divisors (see below), whose sum is σ = 2261264640. Its totient is φ = 847973880.

The previous prime is 1399157173. The next prime is 1399157203. The reversal of 1399157199 is 9917519931.

It is not a de Polignac number, because 1399157199 - 2⁹ = 1399156687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399157099) 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, 2355187 + ... + 2355780.

It is an arithmetic number, because the mean of its divisors is an integer number (141329040).

Almost surely, 2^1399157199 is an apocalyptic number.

1399157199 is a deficient number, since it is larger than the sum of its proper divisors (862107441).

1399157199 is a wasteful number, since it uses less digits than its factorization.

1399157199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710987 (or 4710981 counting only the distinct ones).

The product of its digits is 688905, while the sum is 54.

The square root of 1399157199 is about 37405.3097701382. The cubic root of 1399157199 is about 1118.4644131724.

The spelling of 1399157199 in words is "one billion, three hundred ninety-nine million, one hundred fifty-seven thousand, one hundred ninety-nine".