1224411145 has 16 divisors (see below), whose sum is σ = 1563640848. Its totient is φ = 917217280.

The previous prime is 1224411143. The next prime is 1224411163. The reversal of 1224411145 is 5411144221.

It can be written as a sum of positive squares in 8 ways, for example, as 23580736 + 1200830409 = 4856^2 + 34653^2 .

It is not a de Polignac number, because 1224411145 - 2¹ = 1224411143 is a prime.

It is a super-2 number, since 2×1224411145² = 2998365304000422050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224411143) 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, 19816 + ... + 53305.

It is an arithmetic number, because the mean of its divisors is an integer number (97727553).

Almost surely, 2^1224411145 is an apocalyptic number.

It is an amenable number.

1224411145 is a deficient number, since it is larger than the sum of its proper divisors (339229703).

1224411145 is a wasteful number, since it uses less digits than its factorization.

1224411145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73340.

The product of its digits is 1280, while the sum is 25.

The square root of 1224411145 is about 34991.5867745377. The cubic root of 1224411145 is about 1069.8160061536.

Adding to 1224411145 its reverse (5411144221), we get a palindrome (6635555366).

The spelling of 1224411145 in words is "one billion, two hundred twenty-four million, four hundred eleven thousand, one hundred forty-five".