1223254564 has 12 divisors (see below), whose sum is σ = 2446509184. Its totient is φ = 524251944.

The previous prime is 1223254553. The next prime is 1223254579. The reversal of 1223254564 is 4654523221.

1223254564 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21843804 + ... + 21843859.

Almost surely, 2^1223254564 is an apocalyptic number.

1223254564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1223254564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223254564 is a wasteful number, since it uses less digits than its factorization.

1223254564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43687674 (or 43687672 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 1223254564 is about 34975.0563116058. The cubic root of 1223254564 is about 1069.4790499848.

Adding to 1223254564 its reverse (4654523221), we get a palindrome (5877777785).

The spelling of 1223254564 in words is "one billion, two hundred twenty-three million, two hundred fifty-four thousand, five hundred sixty-four".