231453 has 6 divisors (see below), whose sum is σ = 334334. Its totient is φ = 154296.

The previous prime is 231443. The next prime is 231461. The reversal of 231453 is 354132.

It can be written as a sum of positive squares in only one way, i.e., 205209 + 26244 = 453^2 + 162^2 .

It is not a de Polignac number, because 231453 - 2⁸ = 231197 is a prime.

It is a Duffinian number.

231453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12850 + ... + 12867.

2²³¹⁴⁵³ is an apocalyptic number.

It is an amenable number.

231453 is a deficient number, since it is larger than the sum of its proper divisors (102881).

231453 is a wasteful number, since it uses less digits than its factorization.

231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25723 (or 25720 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 231453 is about 481.0956245904. The cubic root of 231453 is about 61.3980066339.

Adding to 231453 its reverse (354132), we get a palindrome (585585).

The spelling of 231453 in words is "two hundred thirty-one thousand, four hundred fifty-three".