231280843 has 8 divisors (see below), whose sum is σ = 238067712. Its totient is φ = 224571816.

The previous prime is 231280823. The next prime is 231280853. The reversal of 231280843 is 348082132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231280843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231280813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13405 + ... + 25342.

It is an arithmetic number, because the mean of its divisors is an integer number (29758464).

Almost surely, 2^231280843 is an apocalyptic number.

231280843 is a deficient number, since it is larger than the sum of its proper divisors (6786869).

231280843 is a wasteful number, since it uses less digits than its factorization.

231280843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38921.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 231280843 is about 15207.9204035266. The cubic root of 231280843 is about 613.8278004584.

The spelling of 231280843 in words is "two hundred thirty-one million, two hundred eighty thousand, eight hundred forty-three".