1161330732 has 36 divisors (see below), whose sum is σ = 2955040816. Its totient is φ = 384544800.

The previous prime is 1161330701. The next prime is 1161330733. The reversal of 1161330732 is 2370331611.

1161330732 is a `hidden beast` number, since 11 + 613 + 3 + 0 + 7 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1161330696 and 1161330705.

It is not an unprimeable number, because it can be changed into a prime (1161330733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101383 + ... + 112254.

Almost surely, 2^1161330732 is an apocalyptic number.

1161330732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1161330732 is an abundant number, since it is smaller than the sum of its proper divisors (1793710084).

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

1161330732 is a wasteful number, since it uses less digits than its factorization.

1161330732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213798 (or 213793 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1161330732 is about 34078.3029507046. The cubic root of 1161330732 is about 1051.1192093167.

The spelling of 1161330732 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, seven hundred thirty-two".