132639 has 16 divisors (see below), whose sum is σ = 201600. Its totient is φ = 76896.

The previous prime is 132637. The next prime is 132647. The reversal of 132639 is 936231.

It is not a de Polignac number, because 132639 - 2¹ = 132637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652 + ... + 830.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

132639 is a Friedman number, since it can be written as (9*6-3)^3-12, using all its digits and the basic arithmetic operations.

2¹³²⁶³⁹ is an apocalyptic number.

132639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

132639 is a deficient number, since it is larger than the sum of its proper divisors (68961).

132639 is a wasteful number, since it uses less digits than its factorization.

132639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its digits is 972, while the sum is 24.

The square root of 132639 is about 364.1963755998. The cubic root of 132639 is about 50.9984620836.

It can be divided in two parts, 132 and 639, that multiplied together give a palindrome (84348).

The spelling of 132639 in words is "one hundred thirty-two thousand, six hundred thirty-nine".