139996744 has 32 divisors (see below), whose sum is σ = 276099840. Its totient is φ = 66456000.

The previous prime is 139996739. The next prime is 139996757. The reversal of 139996744 is 447699931.

139996744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139996691 and 139996700.

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, 7819 + ... + 18469.

It is an arithmetic number, because the mean of its divisors is an integer number (8628120).

Almost surely, 2^139996744 is an apocalyptic number.

It is an amenable number.

139996744 is a deficient number, since it is larger than the sum of its proper divisors (136103096).

139996744 is a wasteful number, since it uses less digits than its factorization.

139996744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741 (or 10737 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The square root of 139996744 is about 11832.0219742866. The cubic root of 139996744 is about 519.2453847347.

The spelling of 139996744 in words is "one hundred thirty-nine million, nine hundred ninety-six thousand, seven hundred forty-four".