3139225 has 12 divisors (see below), whose sum is σ = 3918400. Its totient is φ = 2494800.

The previous prime is 3139207. The next prime is 3139231. The reversal of 3139225 is 5229313.

It is a happy number.

It is not a de Polignac number, because 3139225 - 2⁵ = 3139193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 3139225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4660 + ... + 5290.

Almost surely, 2^3139225 is an apocalyptic number.

It is an amenable number.

3139225 is a deficient number, since it is larger than the sum of its proper divisors (779175).

3139225 is a wasteful number, since it uses less digits than its factorization.

3139225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 835 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 3139225 is about 1771.7858222709. The cubic root of 3139225 is about 146.4223866400.

It can be divided in two parts, 3139 and 225, that added together give a square (3364 = 58²).

The spelling of 3139225 in words is "three million, one hundred thirty-nine thousand, two hundred twenty-five".