1243833132 has 18 divisors (see below), whose sum is σ = 2902562404. Its totient is φ = 414570320.

The previous prime is 1243833131. The next prime is 1243833161. The reversal of 1243833132 is 2313383421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243833132.

It is not an unprimeable number, because it can be changed into a prime (1243833131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117082 + ... + 127262.

Almost surely, 2^1243833132 is an apocalyptic number.

1243833132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243833132 is an abundant number, since it is smaller than the sum of its proper divisors (1658729272).

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

1243833132 is an frugal number, since it uses more digits than its factorization.

1243833132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20369 (or 10186 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 1243833132 is about 35268.0185437175. The cubic root of 1243833132 is about 1075.4429418932.

The spelling of 1243833132 in words is "one billion, two hundred forty-three million, eight hundred thirty-three thousand, one hundred thirty-two".