231634943 has 4 divisors (see below), whose sum is σ = 231717480. Its totient is φ = 231552408.

The previous prime is 231634903. The next prime is 231634957. The reversal of 231634943 is 349436132.

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 231634943 - 2¹⁴ = 231618559 is a prime.

It is a super-2 number, since 2×231634943² = 107309493637226498, 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 (231634903) 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, 36905 + ... + 42722.

It is an arithmetic number, because the mean of its divisors is an integer number (57929370).

Almost surely, 2^231634943 is an apocalyptic number.

231634943 is a deficient number, since it is larger than the sum of its proper divisors (82537).

231634943 is an equidigital number, since it uses as much as digits as its factorization.

231634943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82536.

The product of its digits is 46656, while the sum is 35.

The square root of 231634943 is about 15219.5579107936. The cubic root of 231634943 is about 614.1409054963.

The spelling of 231634943 in words is "two hundred thirty-one million, six hundred thirty-four thousand, nine hundred forty-three".