1225363345 has 8 divisors (see below), whose sum is σ = 1473261480. Its totient is φ = 978407040.

The previous prime is 1225363343. The next prime is 1225363379. The reversal of 1225363345 is 5433635221.

It can be written as a sum of positive squares in 4 ways, for example, as 3721041 + 1221642304 = 1929^2 + 34952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225363345 - 2¹ = 1225363343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225363345.

It is not an unprimeable number, because it can be changed into a prime (1225363343) 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 7 ways as a sum of consecutive naturals, for example, 232590 + ... + 237799.

It is an arithmetic number, because the mean of its divisors is an integer number (184157685).

Almost surely, 2^1225363345 is an apocalyptic number.

It is an amenable number.

1225363345 is a deficient number, since it is larger than the sum of its proper divisors (247898135).

1225363345 is an equidigital number, since it uses as much as digits as its factorization.

1225363345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470915.

The product of its digits is 64800, while the sum is 34.

The square root of 1225363345 is about 35005.1902580175. The cubic root of 1225363345 is about 1070.0932591146.

Adding to 1225363345 its reverse (5433635221), we get a palindrome (6658998566).

The spelling of 1225363345 in words is "one billion, two hundred twenty-five million, three hundred sixty-three thousand, three hundred forty-five".