1243652 has 12 divisors (see below), whose sum is σ = 2304540. Its totient is φ = 585216.

The previous prime is 1243643. The next prime is 1243663. The reversal of 1243652 is 2563421.

It can be written as a sum of positive squares in 2 ways, for example, as 1132096 + 111556 = 1064^2 + 334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9077 + ... + 9212.

It is an arithmetic number, because the mean of its divisors is an integer number (192045).

2^1243652 is an apocalyptic number.

It is an amenable number.

1243652 is a deficient number, since it is larger than the sum of its proper divisors (1060888).

1243652 is a wasteful number, since it uses less digits than its factorization.

1243652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310 (or 18308 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 1243652 is about 1115.1914633820. The cubic root of 1243652 is about 107.5390735912.

The spelling of 1243652 in words is "one million, two hundred forty-three thousand, six hundred fifty-two".