1132720 has 20 divisors (see below), whose sum is σ = 2633760. Its totient is φ = 453056.

The previous prime is 1132697. The next prime is 1132721. The reversal of 1132720 is 272311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1132694 and 1132703.

It is not an unprimeable number, because it can be changed into a prime (1132721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7000 + ... + 7159.

It is an arithmetic number, because the mean of its divisors is an integer number (131688).

2^1132720 is an apocalyptic number.

1132720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1132720 is an abundant number, since it is smaller than the sum of its proper divisors (1501040).

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

1132720 is a wasteful number, since it uses less digits than its factorization.

1132720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172 (or 14166 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1132720 is about 1064.2931926871. The cubic root of 1132720 is about 104.2415490009.

The spelling of 1132720 in words is "one million, one hundred thirty-two thousand, seven hundred twenty".