23140433 has 2 divisors, whose sum is σ = 23140434. Its totient is φ = 23140432.

The previous prime is 23140427. The next prime is 23140501. The reversal of 23140433 is 33404132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22771984 + 368449 = 4772^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 23140433 - 2⁸ = 23140177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23145433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11570216 + 11570217.

It is an arithmetic number, because the mean of its divisors is an integer number (11570217).

Almost surely, 2^23140433 is an apocalyptic number.

It is an amenable number.

23140433 is a deficient number, since it is larger than the sum of its proper divisors (1).

23140433 is an equidigital number, since it uses as much as digits as its factorization.

23140433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23140433 is about 4810.4503947136. The cubic root of 23140433 is about 284.9643250719.

Adding to 23140433 its reverse (33404132), we get a palindrome (56544565).

The spelling of 23140433 in words is "twenty-three million, one hundred forty thousand, four hundred thirty-three".