1227564223 has 2 divisors, whose sum is σ = 1227564224. Its totient is φ = 1227564222.

The previous prime is 1227564199. The next prime is 1227564253. The reversal of 1227564223 is 3224657221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1227564223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227564253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613782111 + 613782112.

It is an arithmetic number, because the mean of its divisors is an integer number (613782112).

Almost surely, 2^1227564223 is an apocalyptic number.

1227564223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227564223 is an equidigital number, since it uses as much as digits as its factorization.

1227564223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 1227564223 is about 35036.6126073854. The cubic root of 1227564223 is about 1070.7335416071.

The spelling of 1227564223 in words is "one billion, two hundred twenty-seven million, five hundred sixty-four thousand, two hundred twenty-three".