1181099352 has 32 divisors (see below), whose sum is σ = 2981422080. Its totient is φ = 389876640.

The previous prime is 1181099321. The next prime is 1181099369. The reversal of 1181099352 is 2539901811.

It is a self number, because there is not a number n which added to its sum of digits gives 1181099352.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 236424 + ... + 241367.

It is an arithmetic number, because the mean of its divisors is an integer number (93169440).

Almost surely, 2^1181099352 is an apocalyptic number.

1181099352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1181099352 is an abundant number, since it is smaller than the sum of its proper divisors (1800322728).

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

1181099352 is a wasteful number, since it uses less digits than its factorization.

1181099352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477903 (or 477899 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1181099352 is about 34367.1260363738. The cubic root of 1181099352 is about 1057.0498698481.

The spelling of 1181099352 in words is "one billion, one hundred eighty-one million, ninety-nine thousand, three hundred fifty-two".