132947720 has 16 divisors (see below), whose sum is σ = 299132460. Its totient is φ = 53179072.

The previous prime is 132947699. The next prime is 132947723. The reversal of 132947720 is 27749231.

It can be written as a sum of positive squares in 2 ways, for example, as 131652676 + 1295044 = 11474^2 + 1138^2 .

It is not an unprimeable number, because it can be changed into a prime (132947723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661807 + ... + 1661886.

Almost surely, 2^132947720 is an apocalyptic number.

132947720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132947720 is an abundant number, since it is smaller than the sum of its proper divisors (166184740).

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

132947720 is a wasteful number, since it uses less digits than its factorization.

132947720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323704 (or 3323700 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 132947720 is about 11530.2957464239. The cubic root of 132947720 is about 510.3799808220.

The spelling of 132947720 in words is "one hundred thirty-two million, nine hundred forty-seven thousand, seven hundred twenty".