231044653 has 12 divisors (see below), whose sum is σ = 278035740. Its totient is φ = 191208192.

The previous prime is 231044651. The next prime is 231044669. The reversal of 231044653 is 356440132.

It can be written as a sum of positive squares in 2 ways, for example, as 81667369 + 149377284 = 9037^2 + 12222^2 .

It is not a de Polignac number, because 231044653 - 2¹ = 231044651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231044651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79876 + ... + 82717.

It is an arithmetic number, because the mean of its divisors is an integer number (23169645).

Almost surely, 2^231044653 is an apocalyptic number.

It is an amenable number.

231044653 is a deficient number, since it is larger than the sum of its proper divisors (46991087).

231044653 is a wasteful number, since it uses less digits than its factorization.

231044653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162636 (or 162629 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 231044653 is about 15200.1530584399. The cubic root of 231044653 is about 613.6187769948.

Adding to 231044653 its reverse (356440132), we get a palindrome (587484785).

The spelling of 231044653 in words is "two hundred thirty-one million, forty-four thousand, six hundred fifty-three".