232542643 has 4 divisors (see below), whose sum is σ = 246221640. Its totient is φ = 218863648.

The previous prime is 232542637. The next prime is 232542647. The reversal of 232542643 is 346245232.

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

It is a cyclic number.

It is not a de Polignac number, because 232542643 - 2⁹ = 232542131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232542647) 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, 6839473 + ... + 6839506.

It is an arithmetic number, because the mean of its divisors is an integer number (61555410).

Almost surely, 2^232542643 is an apocalyptic number.

232542643 is a deficient number, since it is larger than the sum of its proper divisors (13678997).

232542643 is a wasteful number, since it uses less digits than its factorization.

232542643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13678996.

The product of its digits is 34560, while the sum is 31.

The square root of 232542643 is about 15249.3489369219. The cubic root of 232542643 is about 614.9420642980.

Adding to 232542643 its reverse (346245232), we get a palindrome (578787875).

The spelling of 232542643 in words is "two hundred thirty-two million, five hundred forty-two thousand, six hundred forty-three".