132581380 has 24 divisors (see below), whose sum is σ = 278716032. Its totient is φ = 52976352.

The previous prime is 132581377. The next prime is 132581399. The reversal of 132581380 is 83185231.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19509 + ... + 25411.

It is an arithmetic number, because the mean of its divisors is an integer number (11613168).

Almost surely, 2^132581380 is an apocalyptic number.

132581380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132581380 is an abundant number, since it is smaller than the sum of its proper divisors (146134652).

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

132581380 is a wasteful number, since it uses less digits than its factorization.

132581380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035 (or 7033 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 132581380 is about 11514.3988119224. The cubic root of 132581380 is about 509.9107622924.

The spelling of 132581380 in words is "one hundred thirty-two million, five hundred eighty-one thousand, three hundred eighty".