319005139492 has 24 divisors (see below), whose sum is σ = 601445342456. Its totient is φ = 147173545728.

The previous prime is 319005139483. The next prime is 319005139493. The reversal of 319005139492 is 294931500913.

It can be written as a sum of positive squares in 4 ways, for example, as 85296707136 + 233708432356 = 292056^2 + 483434^2 .

It is not an unprimeable number, because it can be changed into a prime (319005139493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111743 + ... + 1368934.

Almost surely, 2^319005139492 is an apocalyptic number.

It is an amenable number.

319005139492 is a deficient number, since it is larger than the sum of its proper divisors (282440202964).

319005139492 is a wasteful number, since it uses less digits than its factorization.

319005139492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483167 (or 2483165 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 46.

The spelling of 319005139492 in words is "three hundred nineteen billion, five million, one hundred thirty-nine thousand, four hundred ninety-two".