3139496138 has 4 divisors (see below), whose sum is σ = 4709244210. Its totient is φ = 1569748068.

The previous prime is 3139496137. The next prime is 3139496147. The reversal of 3139496138 is 8316949313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3098369569 + 41126569 = 55663^2 + 6413^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3139496092 and 3139496101.

It is not an unprimeable number, because it can be changed into a prime (3139496137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784874033 + ... + 784874036.

Almost surely, 2^3139496138 is an apocalyptic number.

3139496138 is a deficient number, since it is larger than the sum of its proper divisors (1569748072).

3139496138 is a wasteful number, since it uses less digits than its factorization.

3139496138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569748071.

The product of its digits is 419904, while the sum is 47.

The square root of 3139496138 is about 56031.2068226270. The cubic root of 3139496138 is about 1464.2660206791.

The spelling of 3139496138 in words is "three billion, one hundred thirty-nine million, four hundred ninety-six thousand, one hundred thirty-eight".