1399130005 has 32 divisors (see below), whose sum is σ = 2187972864. Its totient is φ = 833504256.

The previous prime is 1399129943. The next prime is 1399130009. The reversal of 1399130005 is 5000319931.

It is not a de Polignac number, because 1399130005 - 2¹⁹ = 1398605717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399130009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82707 + ... + 98176.

It is an arithmetic number, because the mean of its divisors is an integer number (68374152).

Almost surely, 2^1399130005 is an apocalyptic number.

It is an amenable number.

1399130005 is a deficient number, since it is larger than the sum of its proper divisors (788842859).

1399130005 is a wasteful number, since it uses less digits than its factorization.

1399130005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180925.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 1399130005 is about 37404.9462638299. The cubic root of 1399130005 is about 1118.4571669725.

Adding to 1399130005 its reverse (5000319931), we get a palindrome (6399449936).

The spelling of 1399130005 in words is "one billion, three hundred ninety-nine million, one hundred thirty thousand, five".