223051289 has 2 divisors, whose sum is σ = 223051290. Its totient is φ = 223051288.

The previous prime is 223051259. The next prime is 223051321. The reversal of 223051289 is 982150322.

It is a happy number.

It is an a-pointer prime, because the next prime (223051321) can be obtained adding 223051289 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222606400 + 444889 = 14920^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 223051289 - 2²⁰ = 222002713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223051219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111525644 + 111525645.

It is an arithmetic number, because the mean of its divisors is an integer number (111525645).

Almost surely, 2^223051289 is an apocalyptic number.

It is an amenable number.

223051289 is a deficient number, since it is larger than the sum of its proper divisors (1).

223051289 is an equidigital number, since it uses as much as digits as its factorization.

223051289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 223051289 is about 14934.9017070753. The cubic root of 223051289 is about 606.4591866208.

The spelling of 223051289 in words is "two hundred twenty-three million, fifty-one thousand, two hundred eighty-nine".