1225323345 has 16 divisors (see below), whose sum is σ = 1961736192. Its totient is φ = 653099520.

The previous prime is 1225323317. The next prime is 1225323347. The reversal of 1225323345 is 5433235221.

It is not a de Polignac number, because 1225323345 - 2⁷ = 1225323217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1225323347) 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 15 ways as a sum of consecutive naturals, for example, 385 + ... + 49505.

It is an arithmetic number, because the mean of its divisors is an integer number (122608512).

Almost surely, 2^1225323345 is an apocalyptic number.

1225323345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225323345 is a deficient number, since it is larger than the sum of its proper divisors (736412847).

1225323345 is a wasteful number, since it uses less digits than its factorization.

1225323345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50792.

The product of its digits is 21600, while the sum is 30.

The square root of 1225323345 is about 35004.6189095096. The cubic root of 1225323345 is about 1070.0816151680.

Adding to 1225323345 its reverse (5433235221), we get a palindrome (6658558566).

The spelling of 1225323345 in words is "one billion, two hundred twenty-five million, three hundred twenty-three thousand, three hundred forty-five".