226545769 has 2 divisors, whose sum is σ = 226545770. Its totient is φ = 226545768.

The previous prime is 226545751. The next prime is 226545811. The reversal of 226545769 is 967545622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206295769 + 20250000 = 14363^2 + 4500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226545769 is a prime.

It is a super-2 number, since 2×226545769² = 102645970903602722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (226545169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113272884 + 113272885.

It is an arithmetic number, because the mean of its divisors is an integer number (113272885).

Almost surely, 2^226545769 is an apocalyptic number.

It is an amenable number.

226545769 is a deficient number, since it is larger than the sum of its proper divisors (1).

226545769 is an equidigital number, since it uses as much as digits as its factorization.

226545769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 46.

The square root of 226545769 is about 15051.4374396600. The cubic root of 226545769 is about 609.6098634071.

The spelling of 226545769 in words is "two hundred twenty-six million, five hundred forty-five thousand, seven hundred sixty-nine".