231133254 has 32 divisors (see below), whose sum is σ = 510378624. Its totient is φ = 69194880.

The previous prime is 231133237. The next prime is 231133261. The reversal of 231133254 is 452331132.

It is a super-2 number, since 2×231133254² = 106845162209257032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 15619 + ... + 26574.

It is an arithmetic number, because the mean of its divisors is an integer number (15949332).

Almost surely, 2^231133254 is an apocalyptic number.

231133254 is an abundant number, since it is smaller than the sum of its proper divisors (279245370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231133254 is a wasteful number, since it uses less digits than its factorization.

231133254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42292.

The product of its digits is 2160, while the sum is 24.

The square root of 231133254 is about 15203.0672563138. The cubic root of 231133254 is about 613.6972038103.

Adding to 231133254 its reverse (452331132), we get a palindrome (683464386).

The spelling of 231133254 in words is "two hundred thirty-one million, one hundred thirty-three thousand, two hundred fifty-four".