24140231 has 4 divisors (see below), whose sum is σ = 24150672. Its totient is φ = 24129792.

The previous prime is 24140197. The next prime is 24140239. The reversal of 24140231 is 13204142.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24140231 is a prime.

It is a super-2 number, since 2×24140231² = 1165501505466722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24140239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (6037668).

Almost surely, 2^24140231 is an apocalyptic number.

24140231 is a deficient number, since it is larger than the sum of its proper divisors (10441).

24140231 is an equidigital number, since it uses as much as digits as its factorization.

24140231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 24140231 is about 4913.2709064329. The cubic root of 24140231 is about 289.0106236841.

Adding to 24140231 its reverse (13204142), we get a palindrome (37344373).

The spelling of 24140231 in words is "twenty-four million, one hundred forty thousand, two hundred thirty-one".