1225613353 has 4 divisors (see below), whose sum is σ = 1228764420. Its totient is φ = 1222462288.

The previous prime is 1225613329. The next prime is 1225613359. The reversal of 1225613353 is 3533165221.

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 818703769 + 406909584 = 28613^2 + 20172^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225613353 - 2²⁹ = 688742441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225613359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574950 + ... + 1575727.

It is an arithmetic number, because the mean of its divisors is an integer number (307191105).

Almost surely, 2^1225613353 is an apocalyptic number.

It is an amenable number.

1225613353 is a deficient number, since it is larger than the sum of its proper divisors (3151067).

1225613353 is an equidigital number, since it uses as much as digits as its factorization.

1225613353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151066.

The product of its digits is 16200, while the sum is 31.

The square root of 1225613353 is about 35008.7610891902. The cubic root of 1225613353 is about 1070.1660303690.

Adding to 1225613353 its reverse (3533165221), we get a palindrome (4758778574).

The spelling of 1225613353 in words is "one billion, two hundred twenty-five million, six hundred thirteen thousand, three hundred fifty-three".