1224266245 has 4 divisors (see below), whose sum is σ = 1469119500. Its totient is φ = 979412992.

The previous prime is 1224266243. The next prime is 1224266257. The reversal of 1224266245 is 5426624221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 527253444 + 697012801 = 22962^2 + 26401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224266245 - 2¹ = 1224266243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1224266245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224266243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122426620 + ... + 122426629.

It is an arithmetic number, because the mean of its divisors is an integer number (367279875).

Almost surely, 2^1224266245 is an apocalyptic number.

It is an amenable number.

1224266245 is a deficient number, since it is larger than the sum of its proper divisors (244853255).

1224266245 is an equidigital number, since it uses as much as digits as its factorization.

1224266245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244853254.

The product of its digits is 46080, while the sum is 34.

The square root of 1224266245 is about 34989.5162155752. The cubic root of 1224266245 is about 1069.7738028857.

It can be divided in two parts, 12242 and 66245, that added together give a palindrome (78487).

The spelling of 1224266245 in words is "one billion, two hundred twenty-four million, two hundred sixty-six thousand, two hundred forty-five".