1225355 has 4 divisors (see below), whose sum is σ = 1470432. Its totient is φ = 980280.

The previous prime is 1225331. The next prime is 1225361. The reversal of 1225355 is 5535221.

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

It is not a de Polignac number, because 1225355 - 2⁸ = 1225099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225355.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122531 + ... + 122540.

It is an arithmetic number, because the mean of its divisors is an integer number (367608).

2^1225355 is an apocalyptic number.

1225355 is a deficient number, since it is larger than the sum of its proper divisors (245077).

1225355 is an equidigital number, since it uses as much as digits as its factorization.

1225355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245076.

The product of its digits is 1500, while the sum is 23.

The square root of 1225355 is about 1106.9575420945. The cubic root of 1225355 is about 107.0090829917.

The spelling of 1225355 in words is "one million, two hundred twenty-five thousand, three hundred fifty-five".