132381 has 8 divisors (see below), whose sum is σ = 196160. Its totient is φ = 88236.

The previous prime is 132371. The next prime is 132383. The reversal of 132381 is 183231.

It is not a de Polignac number, because 132381 - 2¹⁰ = 131357 is a prime.

It is a super-2 number, since 2×132381² = 35049458322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132383) 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 7 ways as a sum of consecutive naturals, for example, 2425 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (24520).

2¹³²³⁸¹ is an apocalyptic number.

It is an amenable number.

132381 is a deficient number, since it is larger than the sum of its proper divisors (63779).

132381 is an equidigital number, since it uses as much as digits as its factorization.

132381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912 (or 4906 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 132381 is about 363.8419986752. The cubic root of 132381 is about 50.9653744207.

The spelling of 132381 in words is "one hundred thirty-two thousand, three hundred eighty-one".