1225946 has 16 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 565488.

The previous prime is 1225933. The next prime is 1225949. The reversal of 1225946 is 6495221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1225949) 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 7 ways as a sum of consecutive naturals, for example, 875 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (124200).

2^1225946 is an apocalyptic number.

1225946 is a deficient number, since it is larger than the sum of its proper divisors (761254).

1225946 is a wasteful number, since it uses less digits than its factorization.

1225946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its digits is 4320, while the sum is 29.

The square root of 1225946 is about 1107.2244578224. The cubic root of 1225946 is about 107.0262840486.

The spelling of 1225946 in words is "one million, two hundred twenty-five thousand, nine hundred forty-six".