231610453 has 4 divisors (see below), whose sum is σ = 231745228. Its totient is φ = 231475680.

The previous prime is 231610451. The next prime is 231610469. The reversal of 231610453 is 354016132.

231610453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1238769 + 230371684 = 1113^2 + 15178^2 .

It is a cyclic number.

It is not a de Polignac number, because 231610453 - 2¹ = 231610451 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 (231610451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64776 + ... + 68257.

It is an arithmetic number, because the mean of its divisors is an integer number (57936307).

Almost surely, 2^231610453 is an apocalyptic number.

It is an amenable number.

231610453 is a deficient number, since it is larger than the sum of its proper divisors (134775).

231610453 is a wasteful number, since it uses less digits than its factorization.

231610453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134774.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 231610453 is about 15218.7533326485. The cubic root of 231610453 is about 614.1192610348.

Adding to 231610453 its reverse (354016132), we get a palindrome (585626585).

It can be divided in two parts, 2316 and 10453, that added together give a square (12769 = 113²).

The spelling of 231610453 in words is "two hundred thirty-one million, six hundred ten thousand, four hundred fifty-three".