139873772 has 6 divisors (see below), whose sum is σ = 244779108. Its totient is φ = 69936884.

The previous prime is 139873771. The next prime is 139873777. The reversal of 139873772 is 277378931.

139873772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139873771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17484218 + ... + 17484225.

It is an arithmetic number, because the mean of its divisors is an integer number (40796518).

Almost surely, 2^139873772 is an apocalyptic number.

It is an amenable number.

139873772 is a deficient number, since it is larger than the sum of its proper divisors (104905336).

139873772 is a wasteful number, since it uses less digits than its factorization.

139873772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34968447 (or 34968445 counting only the distinct ones).

The product of its digits is 444528, while the sum is 47.

The square root of 139873772 is about 11826.8242567479. The cubic root of 139873772 is about 519.0933065586.

The spelling of 139873772 in words is "one hundred thirty-nine million, eight hundred seventy-three thousand, seven hundred seventy-two".