229268993 has 2 divisors, whose sum is σ = 229268994. Its totient is φ = 229268992.

The previous prime is 229268989. The next prime is 229268999. The reversal of 229268993 is 399862922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212809744 + 16459249 = 14588^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 229268993 - 2² = 229268989 is a prime.

It is not a weakly prime, because it can be changed into another prime (229268999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114634496 + 114634497.

It is an arithmetic number, because the mean of its divisors is an integer number (114634497).

Almost surely, 2^229268993 is an apocalyptic number.

It is an amenable number.

229268993 is a deficient number, since it is larger than the sum of its proper divisors (1).

229268993 is an equidigital number, since it uses as much as digits as its factorization.

229268993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 229268993 is about 15141.6311208535. The cubic root of 229268993 is about 612.0427734711.

The spelling of 229268993 in words is "two hundred twenty-nine million, two hundred sixty-eight thousand, nine hundred ninety-three".