1225103 has 4 divisors (see below), whose sum is σ = 1336488. Its totient is φ = 1113720.

The previous prime is 1225099. The next prime is 1225109. The reversal of 1225103 is 3015221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1225103 - 2² = 1225099 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 (1225109) 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, 55676 + ... + 55697.

It is an arithmetic number, because the mean of its divisors is an integer number (334122).

2^1225103 is an apocalyptic number.

1225103 is a deficient number, since it is larger than the sum of its proper divisors (111385).

1225103 is a wasteful number, since it uses less digits than its factorization.

1225103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111384.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1225103 is about 1106.8437107379. The cubic root of 1225103 is about 107.0017468489.

Subtracting from 1225103 its product of nonzero digits (60), we obtain a cube (1225043 = 107³).

It can be divided in two parts, 122 and 5103, that added together give a palindrome (5225).

The spelling of 1225103 in words is "one million, two hundred twenty-five thousand, one hundred three".