1225732 has 12 divisors (see below), whose sum is σ = 2158156. Its totient is φ = 609120.

The previous prime is 1225729. The next prime is 1225759. The reversal of 1225732 is 2375221.

It can be written as a sum of positive squares in 2 ways, for example, as 173056 + 1052676 = 416^2 + 1026^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123 + ... + 1570.

2^1225732 is an apocalyptic number.

It is an amenable number.

1225732 is a deficient number, since it is larger than the sum of its proper divisors (932424).

1225732 is a wasteful number, since it uses less digits than its factorization.

1225732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1876 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 1225732 is about 1107.1278155660. The cubic root of 1225732 is about 107.0200562165.

The spelling of 1225732 in words is "one million, two hundred twenty-five thousand, seven hundred thirty-two".