232543421 has 8 divisors (see below), whose sum is σ = 256055904. Its totient is φ = 209426320.

The previous prime is 232543417. The next prime is 232543427. The reversal of 232543421 is 124345232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232543421 - 2² = 232543417 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 (232543427) 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 7 ways as a sum of consecutive naturals, for example, 97610 + ... + 99963.

It is an arithmetic number, because the mean of its divisors is an integer number (32006988).

Almost surely, 2^232543421 is an apocalyptic number.

It is an amenable number.

232543421 is a deficient number, since it is larger than the sum of its proper divisors (23512483).

232543421 is a wasteful number, since it uses less digits than its factorization.

232543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197691.

The product of its digits is 5760, while the sum is 26.

The square root of 232543421 is about 15249.3744461863. The cubic root of 232543421 is about 614.9427500854.

Adding to 232543421 its reverse (124345232), we get a palindrome (356888653).

The spelling of 232543421 in words is "two hundred thirty-two million, five hundred forty-three thousand, four hundred twenty-one".