232216231 has 4 divisors (see below), whose sum is σ = 250079032. Its totient is φ = 214353432.

The previous prime is 232216223. The next prime is 232216241. The reversal of 232216231 is 132612232.

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 232216231 - 2³ = 232216223 is a prime.

It is a super-2 number, since 2×232216231² = 107848755879690722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232216241) 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, 8931381 + ... + 8931406.

It is an arithmetic number, because the mean of its divisors is an integer number (62519758).

Almost surely, 2^232216231 is an apocalyptic number.

232216231 is a deficient number, since it is larger than the sum of its proper divisors (17862801).

232216231 is a wasteful number, since it uses less digits than its factorization.

232216231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17862800.

The product of its digits is 864, while the sum is 22.

The square root of 232216231 is about 15238.6426889011. The cubic root of 232216231 is about 614.6542053252.

Adding to 232216231 its reverse (132612232), we get a palindrome (364828463).

The spelling of 232216231 in words is "two hundred thirty-two million, two hundred sixteen thousand, two hundred thirty-one".