1225544 has 16 divisors (see below), whose sum is σ = 2310000. Its totient is φ = 609552.

The previous prime is 1225541. The next prime is 1225559. The reversal of 1225544 is 4455221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1225541) 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, 2207 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (144375).

2^1225544 is an apocalyptic number.

It is an amenable number.

1225544 is a deficient number, since it is larger than the sum of its proper divisors (1084456).

1225544 is a wasteful number, since it uses less digits than its factorization.

1225544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 808 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 1225544 is about 1107.0429079309. The cubic root of 1225544 is about 107.0145844388.

The spelling of 1225544 in words is "one million, two hundred twenty-five thousand, five hundred forty-four".