1182232140 has 48 divisors (see below), whose sum is σ = 3399722592. Its totient is φ = 306740736.

The previous prime is 1182232111. The next prime is 1182232141. The reversal of 1182232140 is 412322811.

It is a self number, because there is not a number n which added to its sum of digits gives 1182232140.

It is not an unprimeable number, because it can be changed into a prime (1182232141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264049 + ... + 268488.

It is an arithmetic number, because the mean of its divisors is an integer number (70827554).

Almost surely, 2^1182232140 is an apocalyptic number.

1182232140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1182232140 is an abundant number, since it is smaller than the sum of its proper divisors (2217490452).

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

1182232140 is a wasteful number, since it uses less digits than its factorization.

1182232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532586 (or 532584 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1182232140 is about 34383.6027780685. The cubic root of 1182232140 is about 1057.3876994016.

Adding to 1182232140 its reverse (412322811), we get a palindrome (1594554951).

The spelling of 1182232140 in words is "one billion, one hundred eighty-two million, two hundred thirty-two thousand, one hundred forty".