23440133 has 2 divisors, whose sum is σ = 23440134. Its totient is φ = 23440132.

The previous prime is 23440099. The next prime is 23440141. The reversal of 23440133 is 33104432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13410244 + 10029889 = 3662^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 23440133 - 2¹⁰ = 23439109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23430133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720066 + 11720067.

It is an arithmetic number, because the mean of its divisors is an integer number (11720067).

Almost surely, 2^23440133 is an apocalyptic number.

It is an amenable number.

23440133 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440133 is an equidigital number, since it uses as much as digits as its factorization.

23440133 is an evil number, because the sum of its binary digits is even.

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

The square root of 23440133 is about 4841.5011101930. The cubic root of 23440133 is about 286.1892767974.

Adding to 23440133 its reverse (33104432), we get a palindrome (56544565).

The spelling of 23440133 in words is "twenty-three million, four hundred forty thousand, one hundred thirty-three".