231093 has 14 divisors (see below), whose sum is σ = 347574. Its totient is φ = 153576.

The previous prime is 231079. The next prime is 231107. The reversal of 231093 is 390132.

It is an interprime number because it is at equal distance from previous prime (231079) and next prime (231107).

It can be written as a sum of positive squares in only one way, i.e., 142884 + 88209 = 378^2 + 297^2 .

It is a de Polignac number, because none of the positive numbers 2^k-231093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231053) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 571 + ... + 887.

2²³¹⁰⁹³ is an apocalyptic number.

It is an amenable number.

231093 is a deficient number, since it is larger than the sum of its proper divisors (116481).

231093 is an frugal number, since it uses more digits than its factorization.

231093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 231093 is about 480.7213329987. The cubic root of 231093 is about 61.3661574722.

The spelling of 231093 in words is "two hundred thirty-one thousand, ninety-three".