1225903 has 4 divisors (see below), whose sum is σ = 1401040. Its totient is φ = 1050768.

The previous prime is 1225897. The next prime is 1225907. The reversal of 1225903 is 3095221.

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 1225903 - 2⁵ = 1225871 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 (1225907) 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, 87558 + ... + 87571.

It is an arithmetic number, because the mean of its divisors is an integer number (350260).

2^1225903 is an apocalyptic number.

1225903 is a deficient number, since it is larger than the sum of its proper divisors (175137).

1225903 is an equidigital number, since it uses as much as digits as its factorization.

1225903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175136.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1225903 is about 1107.2050397284. The cubic root of 1225903 is about 107.0250327200.

The spelling of 1225903 in words is "one million, two hundred twenty-five thousand, nine hundred three".