139797272 has 16 divisors (see below), whose sum is σ = 264441240. Its totient is φ = 69279616.

The previous prime is 139797271. The next prime is 139797283. The reversal of 139797272 is 272797931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139797271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76418 + ... + 78225.

Almost surely, 2^139797272 is an apocalyptic number.

It is an amenable number.

139797272 is a deficient number, since it is larger than the sum of its proper divisors (124643968).

139797272 is a wasteful number, since it uses less digits than its factorization.

139797272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154762 (or 154758 counting only the distinct ones).

The product of its digits is 333396, while the sum is 47.

The square root of 139797272 is about 11823.5896410523. The cubic root of 139797272 is about 518.9986548377.

The spelling of 139797272 in words is "one hundred thirty-nine million, seven hundred ninety-seven thousand, two hundred seventy-two".