1244522663 has 16 divisors (see below), whose sum is σ = 1313680896. Its totient is φ = 1176695520.

The previous prime is 1244522647. The next prime is 1244522681. The reversal of 1244522663 is 3662254421.

It is a cyclic number.

It is not a de Polignac number, because 1244522663 - 2⁴ = 1244522647 is a prime.

It is a super-2 number, since 2×1244522663² = 3097673317441223138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244522603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954470 + ... + 955772.

It is an arithmetic number, because the mean of its divisors is an integer number (82105056).

Almost surely, 2^1244522663 is an apocalyptic number.

1244522663 is a deficient number, since it is larger than the sum of its proper divisors (69158233).

1244522663 is a wasteful number, since it uses less digits than its factorization.

1244522663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774.

The product of its digits is 69120, while the sum is 35.

The square root of 1244522663 is about 35277.7927739251. The cubic root of 1244522663 is about 1075.6416326022.

The spelling of 1244522663 in words is "one billion, two hundred forty-four million, five hundred twenty-two thousand, six hundred sixty-three".