231782325 has 12 divisors (see below), whose sum is σ = 383213568. Its totient is φ = 123617200.

The previous prime is 231782321. The next prime is 231782329. The reversal of 231782325 is 523287132.

It is an interprime number because it is at equal distance from previous prime (231782321) and next prime (231782329).

It is not a de Polignac number, because 231782325 - 2² = 231782321 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231782321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1545141 + ... + 1545290.

It is an arithmetic number, because the mean of its divisors is an integer number (31934464).

Almost surely, 2^231782325 is an apocalyptic number.

231782325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231782325 is a deficient number, since it is larger than the sum of its proper divisors (151431243).

231782325 is a wasteful number, since it uses less digits than its factorization.

231782325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090444 (or 3090439 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 231782325 is about 15224.3990029163. The cubic root of 231782325 is about 614.2711307027.

The spelling of 231782325 in words is "two hundred thirty-one million, seven hundred eighty-two thousand, three hundred twenty-five".