231343245 has 24 divisors (see below), whose sum is σ = 458280576. Its totient is φ = 105756768.

The previous prime is 231343243. The next prime is 231343247. The reversal of 231343245 is 542343132.

It is an interprime number because it is at equal distance from previous prime (231343243) and next prime (231343247).

It is not a de Polignac number, because 231343245 - 2¹ = 231343243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231343241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366897 + ... + 367526.

It is an arithmetic number, because the mean of its divisors is an integer number (19095024).

Almost surely, 2^231343245 is an apocalyptic number.

It is an amenable number.

231343245 is a deficient number, since it is larger than the sum of its proper divisors (226937331).

231343245 is a wasteful number, since it uses less digits than its factorization.

231343245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734441 (or 734438 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 231343245 is about 15209.9718934652. The cubic root of 231343245 is about 613.8830012228.

Adding to 231343245 its reverse (542343132), we get a palindrome (773686377).

The spelling of 231343245 in words is "two hundred thirty-one million, three hundred forty-three thousand, two hundred forty-five".