239491225 has 6 divisors (see below), whose sum is σ = 296969150. Its totient is φ = 191592960.

The previous prime is 239491211. The next prime is 239491247. The reversal of 239491225 is 522194932.

It can be written as a sum of positive squares in 3 ways, for example, as 19740249 + 219750976 = 4443^2 + 14824^2 .

It is not a de Polignac number, because 239491225 - 2¹³ = 239483033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4789800 + ... + 4789849.

Almost surely, 2^239491225 is an apocalyptic number.

239491225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

239491225 is a deficient number, since it is larger than the sum of its proper divisors (57477925).

239491225 is an equidigital number, since it uses as much as digits as its factorization.

239491225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579659 (or 9579654 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 239491225 is about 15475.5040305639. The cubic root of 239491225 is about 621.0070565692.

The spelling of 239491225 in words is "two hundred thirty-nine million, four hundred ninety-one thousand, two hundred twenty-five".