132728893 has 12 divisors (see below), whose sum is σ = 149002560. Its totient is φ = 118090280.

The previous prime is 132728881. The next prime is 132728909. The reversal of 132728893 is 398827231.

It is not a de Polignac number, because 132728893 - 2²¹ = 130631741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132728833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5983 + ... + 17356.

It is an arithmetic number, because the mean of its divisors is an integer number (12416880).

Almost surely, 2^132728893 is an apocalyptic number.

It is an amenable number.

132728893 is a deficient number, since it is larger than the sum of its proper divisors (16273667).

132728893 is a wasteful number, since it uses less digits than its factorization.

132728893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23408 (or 23397 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 132728893 is about 11520.8026196095. The cubic root of 132728893 is about 510.0998048938.

The spelling of 132728893 in words is "one hundred thirty-two million, seven hundred twenty-eight thousand, eight hundred ninety-three".