39144225 has 12 divisors (see below), whose sum is σ = 64718576. Its totient is φ = 20876880.

The previous prime is 39144181. The next prime is 39144271. The reversal of 39144225 is 52244193.

It is not a de Polignac number, because 39144225 - 2⁸ = 39143969 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39144192 and 39144201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260887 + ... + 261036.

Almost surely, 2^39144225 is an apocalyptic number.

It is an amenable number.

39144225 is a deficient number, since it is larger than the sum of its proper divisors (25574351).

39144225 is a wasteful number, since it uses less digits than its factorization.

39144225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521936 (or 521931 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 39144225 is about 6256.5345839370. The cubic root of 39144225 is about 339.5386620786.

The spelling of 39144225 in words is "thirty-nine million, one hundred forty-four thousand, two hundred twenty-five".