1392099112 has 8 divisors (see below), whose sum is σ = 2610185850. Its totient is φ = 696049552.

The previous prime is 1392099109. The next prime is 1392099119. The reversal of 1392099112 is 2119902931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 745617636 + 646481476 = 27306^2 + 25426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1392099119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87006187 + ... + 87006202.

Almost surely, 2^1392099112 is an apocalyptic number.

It is an amenable number.

1392099112 is a deficient number, since it is larger than the sum of its proper divisors (1218086738).

1392099112 is a wasteful number, since it uses less digits than its factorization.

1392099112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174012395 (or 174012391 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 1392099112 is about 37310.8444289325. The cubic root of 1392099112 is about 1116.5805336796.

The spelling of 1392099112 in words is "one billion, three hundred ninety-two million, ninety-nine thousand, one hundred twelve".