132847021 has 4 divisors (see below), whose sum is σ = 133376544. Its totient is φ = 132317500.

The previous prime is 132847003. The next prime is 132847037. The reversal of 132847021 is 120748231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120748231 = 2593 ⋅46567.

It is a cyclic number.

It is not a de Polignac number, because 132847021 - 2²¹ = 130749869 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 (132847321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264385 + ... + 264886.

It is an arithmetic number, because the mean of its divisors is an integer number (33344136).

Almost surely, 2^132847021 is an apocalyptic number.

It is an amenable number.

132847021 is a deficient number, since it is larger than the sum of its proper divisors (529523).

132847021 is an equidigital number, since it uses as much as digits as its factorization.

132847021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529522.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 132847021 is about 11525.9282055720. The cubic root of 132847021 is about 510.2510887152.

The spelling of 132847021 in words is "one hundred thirty-two million, eight hundred forty-seven thousand, twenty-one".