232131245 has 4 divisors (see below), whose sum is σ = 278557500. Its totient is φ = 185704992.

The previous prime is 232131239. The next prime is 232131247. The reversal of 232131245 is 542131232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132411049 + 99720196 = 11507^2 + 9986^2 .

It is a cyclic number.

It is not a de Polignac number, because 232131245 - 2¹⁰ = 232130221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232131245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23213120 + ... + 23213129.

It is an arithmetic number, because the mean of its divisors is an integer number (69639375).

Almost surely, 2^232131245 is an apocalyptic number.

It is an amenable number.

232131245 is a deficient number, since it is larger than the sum of its proper divisors (46426255).

232131245 is an equidigital number, since it uses as much as digits as its factorization.

232131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46426254.

The product of its digits is 1440, while the sum is 23.

The square root of 232131245 is about 15235.8539307779. The cubic root of 232131245 is about 614.5792128984.

Adding to 232131245 its reverse (542131232), we get a palindrome (774262477).

The spelling of 232131245 in words is "two hundred thirty-two million, one hundred thirty-one thousand, two hundred forty-five".