132728419 has 4 divisors (see below), whose sum is σ = 132794640. Its totient is φ = 132662200.

The previous prime is 132728417. The next prime is 132728429. The reversal of 132728419 is 914827231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132728419 - 2¹ = 132728417 is a prime.

It is a super-2 number, since 2×132728419² = 35233666420479122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132728417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30007 + ... + 34144.

It is an arithmetic number, because the mean of its divisors is an integer number (33198660).

Almost surely, 2^132728419 is an apocalyptic number.

132728419 is a deficient number, since it is larger than the sum of its proper divisors (66221).

132728419 is an equidigital number, since it uses as much as digits as its factorization.

132728419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66220.

The product of its digits is 24192, while the sum is 37.

The square root of 132728419 is about 11520.7820481077. The cubic root of 132728419 is about 510.0991976721.

The spelling of 132728419 in words is "one hundred thirty-two million, seven hundred twenty-eight thousand, four hundred nineteen".