23140231 has 8 divisors (see below), whose sum is σ = 24979680. Its totient is φ = 21370272.

The previous prime is 23140217. The next prime is 23140241. The reversal of 23140231 is 13204132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23140231 - 2⁵ = 23140199 is a prime.

It is a super-2 number, since 2×23140231² = 1070940581466722, 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 (23140241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16680 + ... + 18013.

It is an arithmetic number, because the mean of its divisors is an integer number (3122460).

Almost surely, 2^23140231 is an apocalyptic number.

23140231 is a deficient number, since it is larger than the sum of its proper divisors (1839449).

23140231 is a wasteful number, since it uses less digits than its factorization.

23140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34745.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23140231 is about 4810.4293987128. The cubic root of 23140231 is about 284.9634958889.

Adding to 23140231 its reverse (13204132), we get a palindrome (36344363).

The spelling of 23140231 in words is "twenty-three million, one hundred forty thousand, two hundred thirty-one".