132530240 has 28 divisors (see below), whose sum is σ = 315588396. Its totient is φ = 53011968.

The previous prime is 132530231. The next prime is 132530243. The reversal of 132530240 is 42035231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47004736 + 85525504 = 6856^2 + 9248^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (132530243) 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, 206759 + ... + 207398.

Almost surely, 2^132530240 is an apocalyptic number.

132530240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132530240 is an abundant number, since it is smaller than the sum of its proper divisors (183058156).

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

132530240 is an equidigital number, since it uses as much as digits as its factorization.

132530240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414174 (or 414164 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 132530240 is about 11512.1778999458. The cubic root of 132530240 is about 509.8451920242.

Adding to 132530240 its reverse (42035231), we get a palindrome (174565471).

The spelling of 132530240 in words is "one hundred thirty-two million, five hundred thirty thousand, two hundred forty".