223012549 has 2 divisors, whose sum is σ = 223012550. Its totient is φ = 223012548.

The previous prime is 223012529. The next prime is 223012553. The reversal of 223012549 is 945210322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150847524 + 72165025 = 12282^2 + 8495^2 .

It is a cyclic number.

It is not a de Polignac number, because 223012549 - 2²⁷ = 88794821 is a prime.

It is a super-2 number, since 2×223012549² = 99469194022954802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223012529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111506274 + 111506275.

It is an arithmetic number, because the mean of its divisors is an integer number (111506275).

Almost surely, 2^223012549 is an apocalyptic number.

It is an amenable number.

223012549 is a deficient number, since it is larger than the sum of its proper divisors (1).

223012549 is an equidigital number, since it uses as much as digits as its factorization.

223012549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 223012549 is about 14933.6046887548. The cubic root of 223012549 is about 606.4240742343.

The spelling of 223012549 in words is "two hundred twenty-three million, twelve thousand, five hundred forty-nine".