3185638130 has 8 divisors (see below), whose sum is σ = 5734148652. Its totient is φ = 1274255248.

The previous prime is 3185638129. The next prime is 3185638163. The reversal of 3185638130 is 318365813.

It can be written as a sum of positive squares in 2 ways, for example, as 3168901849 + 16736281 = 56293^2 + 4091^2 .

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

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, 159281897 + ... + 159281916.

Almost surely, 2^3185638130 is an apocalyptic number.

3185638130 is a deficient number, since it is larger than the sum of its proper divisors (2548510522).

3185638130 is a wasteful number, since it uses less digits than its factorization.

3185638130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318563820.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 3185638130 is about 56441.4575467360. The cubic root of 3185638130 is about 1471.4047272213.

The spelling of 3185638130 in words is "three billion, one hundred eighty-five million, six hundred thirty-eight thousand, one hundred thirty".