1225349 has 4 divisors (see below), whose sum is σ = 1227564. Its totient is φ = 1223136.

The previous prime is 1225331. The next prime is 1225361. The reversal of 1225349 is 9435221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 1050625 = 418^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225349 - 2⁸ = 1225093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539 + ... + 1655.

It is an arithmetic number, because the mean of its divisors is an integer number (306891).

2^1225349 is an apocalyptic number.

It is an amenable number.

1225349 is a deficient number, since it is larger than the sum of its proper divisors (2215).

1225349 is a wasteful number, since it uses less digits than its factorization.

1225349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214.

The product of its digits is 2160, while the sum is 26.

The square root of 1225349 is about 1106.9548319602. The cubic root of 1225349 is about 107.0089083333.

The spelling of 1225349 in words is "one million, two hundred twenty-five thousand, three hundred forty-nine".