231344455 has 16 divisors (see below), whose sum is σ = 288177120. Its totient is φ = 178077312.

The previous prime is 231344453. The next prime is 231344459. The reversal of 231344455 is 554443132.

It is a cyclic number.

It is not a de Polignac number, because 231344455 - 2¹ = 231344453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231344453) 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 15 ways as a sum of consecutive naturals, for example, 41917 + ... + 47113.

It is an arithmetic number, because the mean of its divisors is an integer number (18011070).

Almost surely, 2^231344455 is an apocalyptic number.

231344455 is a deficient number, since it is larger than the sum of its proper divisors (56832665).

231344455 is a wasteful number, since it uses less digits than its factorization.

231344455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538.

The product of its digits is 28800, while the sum is 31.

The square root of 231344455 is about 15210.0116699495. The cubic root of 231344455 is about 613.8840714898.

Adding to 231344455 its reverse (554443132), we get a palindrome (785787587).

The spelling of 231344455 in words is "two hundred thirty-one million, three hundred forty-four thousand, four hundred fifty-five".