139744268 has 12 divisors (see below), whose sum is σ = 245418600. Its totient is φ = 69624672.

The previous prime is 139744237. The next prime is 139744271. The reversal of 139744268 is 862447931.

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, 60593 + ... + 62856.

It is an arithmetic number, because the mean of its divisors is an integer number (20451550).

Almost surely, 2^139744268 is an apocalyptic number.

It is an amenable number.

139744268 is a deficient number, since it is larger than the sum of its proper divisors (105674332).

139744268 is a wasteful number, since it uses less digits than its factorization.

139744268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123736 (or 123734 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 139744268 is about 11821.3479772825. The cubic root of 139744268 is about 518.9330539340.

The spelling of 139744268 in words is "one hundred thirty-nine million, seven hundred forty-four thousand, two hundred sixty-eight".