231534244 has 6 divisors (see below), whose sum is σ = 405184934. Its totient is φ = 115767120.

The previous prime is 231534241. The next prime is 231534253. The reversal of 231534244 is 442435132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 198471744 + 33062500 = 14088^2 + 5750^2 .

It is a super-2 number, since 2×231534244² = 107216212289303072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231534241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28941777 + ... + 28941784.

Almost surely, 2^231534244 is an apocalyptic number.

It is an amenable number.

231534244 is a deficient number, since it is larger than the sum of its proper divisors (173650690).

231534244 is a wasteful number, since it uses less digits than its factorization.

231534244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57883565 (or 57883563 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 231534244 is about 15216.2493407541. The cubic root of 231534244 is about 614.0518971366.

Adding to 231534244 its reverse (442435132), we get a palindrome (673969376).

The spelling of 231534244 in words is "two hundred thirty-one million, five hundred thirty-four thousand, two hundred forty-four".