1181532960 has 96 divisors (see below), whose sum is σ = 4135380480. Its totient is φ = 315074304.

The previous prime is 1181532949. The next prime is 1181533009. The reversal of 1181532960 is 692351811.

1181532960 is a `hidden beast` number, since 118 + 1 + 532 + 9 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132432 + ... + 141071.

It is an arithmetic number, because the mean of its divisors is an integer number (43076880).

Almost surely, 2^1181532960 is an apocalyptic number.

1181532960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1181532960 is an abundant number, since it is smaller than the sum of its proper divisors (2953847520).

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

1181532960 is a wasteful number, since it uses less digits than its factorization.

1181532960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273527 (or 273513 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1181532960 is about 34373.4339279624. The cubic root of 1181532960 is about 1057.1792095746.

The spelling of 1181532960 in words is "one billion, one hundred eighty-one million, five hundred thirty-two thousand, nine hundred sixty".