1319968144 has 20 divisors (see below), whose sum is σ = 2789933040. Its totient is φ = 599985440.

The previous prime is 1319968129. The next prime is 1319968151. The reversal of 1319968144 is 4418699131.

It is a junction number, because it is equal to n+sod(n) for n = 1319968094 and 1319968103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3749734 + ... + 3750085.

It is an arithmetic number, because the mean of its divisors is an integer number (139496652).

Almost surely, 2^1319968144 is an apocalyptic number.

It is an amenable number.

1319968144 is an abundant number, since it is smaller than the sum of its proper divisors (1469964896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1319968144 is a wasteful number, since it uses less digits than its factorization.

1319968144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499838 (or 7499832 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 1319968144 is about 36331.3658427536. The cubic root of 1319968144 is about 1096.9524859712.

The spelling of 1319968144 in words is "one billion, three hundred nineteen million, nine hundred sixty-eight thousand, one hundred forty-four".