139741625 has 8 divisors (see below), whose sum is σ = 174397704. Its totient is φ = 111793200.

The previous prime is 139741603. The next prime is 139741639. The reversal of 139741625 is 526147931.

It can be written as a sum of positive squares in 4 ways, for example, as 42758521 + 96983104 = 6539^2 + 9848^2 .

It is a de Polignac number, because none of the positive numbers 2^k-139741625 is a prime.

It is a Duffinian number.

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, 558842 + ... + 559091.

It is an arithmetic number, because the mean of its divisors is an integer number (21799713).

Almost surely, 2^139741625 is an apocalyptic number.

It is an amenable number.

139741625 is a deficient number, since it is larger than the sum of its proper divisors (34656079).

139741625 is an equidigital number, since it uses as much as digits as its factorization.

139741625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117948 (or 1117938 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 139741625 is about 11821.2361874721. The cubic root of 139741625 is about 518.9297823658.

The spelling of 139741625 in words is "one hundred thirty-nine million, seven hundred forty-one thousand, six hundred twenty-five".