232123453 has 4 divisors (see below), whose sum is σ = 240127740. Its totient is φ = 224119168.

The previous prime is 232123447. The next prime is 232123469. The reversal of 232123453 is 354321232.

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 152324964 + 79798489 = 12342^2 + 8933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232123453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232123403) 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, 4002100 + ... + 4002157.

It is an arithmetic number, because the mean of its divisors is an integer number (60031935).

Almost surely, 2^232123453 is an apocalyptic number.

It is an amenable number.

232123453 is a deficient number, since it is larger than the sum of its proper divisors (8004287).

232123453 is an equidigital number, since it uses as much as digits as its factorization.

232123453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004286.

The product of its digits is 4320, while the sum is 25.

The square root of 232123453 is about 15235.5982160203. The cubic root of 232123453 is about 614.5723362501.

Adding to 232123453 its reverse (354321232), we get a palindrome (586444685).

It can be divided in two parts, 232 and 123453, that multiplied together give a triangular number (28641096 = T₇₅₆₈).

The spelling of 232123453 in words is "two hundred thirty-two million, one hundred twenty-three thousand, four hundred fifty-three".