23331229 has 2 divisors, whose sum is σ = 23331230. Its totient is φ = 23331228.

The previous prime is 23331199. The next prime is 23331271. The reversal of 23331229 is 92213332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13155129 + 10176100 = 3627^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 23331229 - 2¹³ = 23323037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23331629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665614 + 11665615.

It is an arithmetic number, because the mean of its divisors is an integer number (11665615).

Almost surely, 2^23331229 is an apocalyptic number.

It is an amenable number.

23331229 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331229 is an equidigital number, since it uses as much as digits as its factorization.

23331229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 23331229 is about 4830.2410912914. The cubic root of 23331229 is about 285.7453721771.

The spelling of 23331229 in words is "twenty-three million, three hundred thirty-one thousand, two hundred twenty-nine".