23443261 has 2 divisors, whose sum is σ = 23443262. Its totient is φ = 23443260.

The previous prime is 23443253. The next prime is 23443307. The reversal of 23443261 is 16234432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22382361 + 1060900 = 4731^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443261 - 2³ = 23443253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23443201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721630 + 11721631.

It is an arithmetic number, because the mean of its divisors is an integer number (11721631).

Almost surely, 2^23443261 is an apocalyptic number.

It is an amenable number.

23443261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23443261 is an equidigital number, since it uses as much as digits as its factorization.

23443261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 23443261 is about 4841.8241397225. The cubic root of 23443261 is about 286.2020065352.

Adding to 23443261 its reverse (16234432), we get a palindrome (39677693).

The spelling of 23443261 in words is "twenty-three million, four hundred forty-three thousand, two hundred sixty-one".