13149731234 has 32 divisors (see below), whose sum is σ = 21023473536. Its totient is φ = 6147185920.

The previous prime is 13149731227. The next prime is 13149731317. The reversal of 13149731234 is 43213794131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349997 + ... + 3353919.

It is an arithmetic number, because the mean of its divisors is an integer number (656983548).

Almost surely, 2^13149731234 is an apocalyptic number.

13149731234 is a deficient number, since it is larger than the sum of its proper divisors (7873742302).

13149731234 is a wasteful number, since it uses less digits than its factorization.

13149731234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570.

The product of its digits is 54432, while the sum is 38.

The spelling of 13149731234 in words is "thirteen billion, one hundred forty-nine million, seven hundred thirty-one thousand, two hundred thirty-four".