132781285 has 48 divisors (see below), whose sum is σ = 203688576. Its totient is φ = 80914176.

The previous prime is 132781283. The next prime is 132781301. The reversal of 132781285 is 582187231.

It is not a de Polignac number, because 132781285 - 2¹ = 132781283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132781283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382482 + ... + 382828.

It is an arithmetic number, because the mean of its divisors is an integer number (4243512).

Almost surely, 2^132781285 is an apocalyptic number.

It is an amenable number.

132781285 is a deficient number, since it is larger than the sum of its proper divisors (70907291).

132781285 is a wasteful number, since it uses less digits than its factorization.

132781285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 401 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 132781285 is about 11523.0761951833. The cubic root of 132781285 is about 510.1669131994.

The spelling of 132781285 in words is "one hundred thirty-two million, seven hundred eighty-one thousand, two hundred eighty-five".