139625 has 8 divisors (see below), whose sum is σ = 174408. Its totient is φ = 111600.

The previous prime is 139619. The next prime is 139627. The reversal of 139625 is 526931.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 107584 = 179^2 + 328^2 .

It is not a de Polignac number, because 139625 - 2⁴ = 139609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139594 and 139603.

It is not an unprimeable number, because it can be changed into a prime (139627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434 + ... + 683.

It is an arithmetic number, because the mean of its divisors is an integer number (21801).

2¹³⁹⁶²⁵ is an apocalyptic number.

It is an amenable number.

139625 is a deficient number, since it is larger than the sum of its proper divisors (34783).

139625 is an equidigital number, since it uses as much as digits as its factorization.

139625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1122 counting only the distinct ones).

The product of its digits is 1620, while the sum is 26.

The square root of 139625 is about 373.6642878307. The cubic root of 139625 is about 51.8785380081.

The spelling of 139625 in words is "one hundred thirty-nine thousand, six hundred twenty-five".