3139105402 has 4 divisors (see below), whose sum is σ = 4708658106. Its totient is φ = 1569552700.

The previous prime is 3139105399. The next prime is 3139105429. The reversal of 3139105402 is 2045019313.

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., 2141745841 + 997359561 = 46279^2 + 31581^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784776349 + ... + 784776352.

Almost surely, 2^3139105402 is an apocalyptic number.

3139105402 is a deficient number, since it is larger than the sum of its proper divisors (1569552704).

3139105402 is a wasteful number, since it uses less digits than its factorization.

3139105402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569552703.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3139105402 is about 56027.7199428997. The cubic root of 3139105402 is about 1464.2052715270.

The spelling of 3139105402 in words is "three billion, one hundred thirty-nine million, one hundred five thousand, four hundred two".