1224564001 has 4 divisors (see below), whose sum is σ = 1224922500. Its totient is φ = 1224205504.

The previous prime is 1224563971. The next prime is 1224564053. The reversal of 1224564001 is 1004654221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1004654221 = 29 ⋅34643249.

It can be written as a sum of positive squares in 2 ways, for example, as 590733025 + 633830976 = 24305^2 + 25176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224564001 - 2⁵ = 1224563969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224564401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174076 + ... + 180973.

It is an arithmetic number, because the mean of its divisors is an integer number (306230625).

Almost surely, 2^1224564001 is an apocalyptic number.

It is an amenable number.

1224564001 is a deficient number, since it is larger than the sum of its proper divisors (358499).

1224564001 is an equidigital number, since it uses as much as digits as its factorization.

1224564001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358498.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1224564001 is about 34993.7708885453. The cubic root of 1224564001 is about 1069.8605230605.

The spelling of 1224564001 in words is "one billion, two hundred twenty-four million, five hundred sixty-four thousand, one".