132478 has 4 divisors (see below), whose sum is σ = 198720. Its totient is φ = 66238.

The previous prime is 132469. The next prime is 132491. The reversal of 132478 is 874231.

132478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874231 = 31 ⋅28201.

It is a congruent number.

It is an unprimeable number.

132478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33118 + ... + 33121.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2¹³²⁴⁷⁸ is an apocalyptic number.

132478 is a deficient number, since it is larger than the sum of its proper divisors (66242).

132478 is an equidigital number, since it uses as much as digits as its factorization.

132478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66241.

The product of its digits is 1344, while the sum is 25.

The square root of 132478 is about 363.9752738855. The cubic root of 132478 is about 50.9778193949.

The spelling of 132478 in words is "one hundred thirty-two thousand, four hundred seventy-eight".