1225912 has 16 divisors (see below), whose sum is σ = 2310840. Its totient is φ = 609696.

The previous prime is 1225909. The next prime is 1225919. The reversal of 1225912 is 2195221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225919) 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, 2083 + ... + 2605.

2^1225912 is an apocalyptic number.

It is an amenable number.

1225912 is a deficient number, since it is larger than the sum of its proper divisors (1084928).

1225912 is a wasteful number, since it uses less digits than its factorization.

1225912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 818 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 1225912 is about 1107.2091040088. The cubic root of 1225912 is about 107.0252946284.

The spelling of 1225912 in words is "one million, two hundred twenty-five thousand, nine hundred twelve".