1379199239 has 16 divisors (see below), whose sum is σ = 1607208480. Its totient is φ = 1169602560.

The previous prime is 1379199229. The next prime is 1379199247. The reversal of 1379199239 is 9329919731.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1379199239 - 2¹² = 1379195143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379199229) 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, 11504 + ... + 53765.

It is an arithmetic number, because the mean of its divisors is an integer number (100450530).

Almost surely, 2^1379199239 is an apocalyptic number.

1379199239 is a deficient number, since it is larger than the sum of its proper divisors (228009241).

1379199239 is a wasteful number, since it uses less digits than its factorization.

1379199239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65410.

The product of its digits is 826686, while the sum is 53.

The square root of 1379199239 is about 37137.5717973052. The cubic root of 1379199239 is about 1113.1208977607.

The spelling of 1379199239 in words is "one billion, three hundred seventy-nine million, one hundred ninety-nine thousand, two hundred thirty-nine".