3122129642 has 8 divisors (see below), whose sum is σ = 4683435876. Its totient is φ = 1560984352.

The previous prime is 3122129599. The next prime is 3122129651. The reversal of 3122129642 is 2469212213.

It can be written as a sum of positive squares in 2 ways, for example, as 3121568641 + 561001 = 55871^2 + 749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3122129599 and 3122129608.

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 in 3 ways as a sum of consecutive naturals, for example, 41348 + ... + 89184.

Almost surely, 2^3122129642 is an apocalyptic number.

3122129642 is a deficient number, since it is larger than the sum of its proper divisors (1561306234).

3122129642 is a wasteful number, since it uses less digits than its factorization.

3122129642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80472.

The product of its digits is 10368, while the sum is 32.

The square root of 3122129642 is about 55876.0202770383. The cubic root of 3122129642 is about 1461.5611065086.

The spelling of 3122129642 in words is "three billion, one hundred twenty-two million, one hundred twenty-nine thousand, six hundred forty-two".