3081139018 has 16 divisors (see below), whose sum is σ = 4825267200. Its totient is φ = 1472789296.

The previous prime is 3081139001. The next prime is 3081139067. The reversal of 3081139018 is 8109311803.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72471 + ... + 106837.

It is an arithmetic number, because the mean of its divisors is an integer number (301579200).

Almost surely, 2^3081139018 is an apocalyptic number.

3081139018 is a deficient number, since it is larger than the sum of its proper divisors (1744128182).

3081139018 is a wasteful number, since it uses less digits than its factorization.

3081139018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36341.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 3081139018 is about 55508.0085933552. The cubic root of 3081139018 is about 1455.1366007404.

The spelling of 3081139018 in words is "three billion, eighty-one million, one hundred thirty-nine thousand, eighteen".