231146453 has 2 divisors, whose sum is σ = 231146454. Its totient is φ = 231146452.

The previous prime is 231146411. The next prime is 231146471. The reversal of 231146453 is 354641132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159946609 + 71199844 = 12647^2 + 8438^2 .

It is a cyclic number.

It is not a de Polignac number, because 231146453 - 2¹⁰ = 231145429 is a prime.

It is a Chen prime.

It is equal to p_12702197 and since 231146453 and 12702197 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231146753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115573226 + 115573227.

It is an arithmetic number, because the mean of its divisors is an integer number (115573227).

Almost surely, 2^231146453 is an apocalyptic number.

It is an amenable number.

231146453 is a deficient number, since it is larger than the sum of its proper divisors (1).

231146453 is an equidigital number, since it uses as much as digits as its factorization.

231146453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 231146453 is about 15203.5013401519. The cubic root of 231146453 is about 613.7088854342.

Adding to 231146453 its reverse (354641132), we get a palindrome (585787585).

The spelling of 231146453 in words is "two hundred thirty-one million, one hundred forty-six thousand, four hundred fifty-three".