1225896 has 32 divisors (see below), whose sum is σ = 3503040. Its totient is φ = 350208.

The previous prime is 1225891. The next prime is 1225897. The reversal of 1225896 is 6985221.

1225896 = 44² + 45² + ... + 155².

It is not an unprimeable number, because it can be changed into a prime (1225891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3481 + ... + 3816.

It is an arithmetic number, because the mean of its divisors is an integer number (109470).

2^1225896 is an apocalyptic number.

It is an amenable number.

1225896 is an abundant number, since it is smaller than the sum of its proper divisors (2277144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225896 is a wasteful number, since it uses less digits than its factorization.

1225896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313 (or 7309 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 1225896 is about 1107.2018786111. The cubic root of 1225896 is about 107.0248290126.

The spelling of 1225896 in words is "one million, two hundred twenty-five thousand, eight hundred ninety-six".