1122144517 has 12 divisors (see below), whose sum is σ = 1283735236. Its totient is φ = 974891520.

The previous prime is 1122144487. The next prime is 1122144577. The reversal of 1122144517 is 7154412211.

It can be written as a sum of positive squares in 6 ways, for example, as 1635841 + 1120508676 = 1279^2 + 33474^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1122144517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122144577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145584 + ... + 153097.

Almost surely, 2^1122144517 is an apocalyptic number.

1122144517 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1122144517 is a deficient number, since it is larger than the sum of its proper divisors (161590719).

1122144517 is a wasteful number, since it uses less digits than its factorization.

1122144517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298728 (or 298711 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 1122144517 is about 33498.4255898691. The cubic root of 1122144517 is about 1039.1612187197.

Adding to 1122144517 its reverse (7154412211), we get a palindrome (8276556728).

The spelling of 1122144517 in words is "one billion, one hundred twenty-two million, one hundred forty-four thousand, five hundred seventeen".