139172 has 12 divisors (see below), whose sum is σ = 265776. Its totient is φ = 63240.

The previous prime is 139169. The next prime is 139177. The reversal of 139172 is 271931.

139172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139172.

It is not an unprimeable number, because it can be changed into a prime (139177) 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, 1538 + ... + 1625.

It is an arithmetic number, because the mean of its divisors is an integer number (22148).

2¹³⁹¹⁷² is an apocalyptic number.

It is an amenable number.

139172 is a deficient number, since it is larger than the sum of its proper divisors (126604).

139172 is a wasteful number, since it uses less digits than its factorization.

139172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178 (or 3176 counting only the distinct ones).

The product of its digits is 378, while the sum is 23.

The square root of 139172 is about 373.0576362977. The cubic root of 139172 is about 51.8223722326.

The spelling of 139172 in words is "one hundred thirty-nine thousand, one hundred seventy-two".