1224452145 has 16 divisors (see below), whose sum is σ = 2238998400. Its totient is φ = 559749504.

The previous prime is 1224452143. The next prime is 1224452197. The reversal of 1224452145 is 5412544221.

It is not a de Polignac number, because 1224452145 - 2¹ = 1224452143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1224452143) 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, 5830620 + ... + 5830829.

It is an arithmetic number, because the mean of its divisors is an integer number (139937400).

Almost surely, 2^1224452145 is an apocalyptic number.

1224452145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224452145 is a deficient number, since it is larger than the sum of its proper divisors (1014546255).

1224452145 is a wasteful number, since it uses less digits than its factorization.

1224452145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661464.

The product of its digits is 12800, while the sum is 30.

The square root of 1224452145 is about 34992.1726247457. The cubic root of 1224452145 is about 1069.8279471226.

Adding to 1224452145 its reverse (5412544221), we get a palindrome (6636996366).

The spelling of 1224452145 in words is "one billion, two hundred twenty-four million, four hundred fifty-two thousand, one hundred forty-five".