1243552 has 12 divisors (see below), whose sum is σ = 2448306. Its totient is φ = 621760.

The previous prime is 1243547. The next prime is 1243559. The reversal of 1243552 is 2553421.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 404496 = 916^2 + 636^2 .

It is not an unprimeable number, because it can be changed into a prime (1243559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19399 + ... + 19462.

2^1243552 is an apocalyptic number.

It is an amenable number.

1243552 is a deficient number, since it is larger than the sum of its proper divisors (1204754).

1243552 is an equidigital number, since it uses as much as digits as its factorization.

1243552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38871 (or 38863 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 1243552 is about 1115.1466271303. The cubic root of 1243552 is about 107.5361911676.

Adding to 1243552 its reverse (2553421), we get a palindrome (3796973).

The spelling of 1243552 in words is "one million, two hundred forty-three thousand, five hundred fifty-two".