1399509112 has 16 divisors (see below), whose sum is σ = 2625651360. Its totient is φ = 699335424.

The previous prime is 1399509109. The next prime is 1399509119. The reversal of 1399509112 is 2119059931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399509119) 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, 37968 + ... + 65119.

It is an arithmetic number, because the mean of its divisors is an integer number (164103210).

Almost surely, 2^1399509112 is an apocalyptic number.

It is an amenable number.

1399509112 is a deficient number, since it is larger than the sum of its proper divisors (1226142248).

1399509112 is a wasteful number, since it uses less digits than its factorization.

1399509112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104790 (or 104786 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 1399509112 is about 37410.0135257928. The cubic root of 1399509112 is about 1118.5581765639.

The spelling of 1399509112 in words is "one billion, three hundred ninety-nine million, five hundred nine thousand, one hundred twelve".