132840821 has 8 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 130232448.

The previous prime is 132840811. The next prime is 132840863. The reversal of 132840821 is 128048231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132840821 - 2¹⁰ = 132839797 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 (132840811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3980 + ... + 16778.

It is an arithmetic number, because the mean of its divisors is an integer number (16934400).

Almost surely, 2^132840821 is an apocalyptic number.

It is an amenable number.

132840821 is a deficient number, since it is larger than the sum of its proper divisors (2634379).

132840821 is a wasteful number, since it uses less digits than its factorization.

132840821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13003.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 132840821 is about 11525.6592436181. The cubic root of 132840821 is about 510.2431507478.

The spelling of 132840821 in words is "one hundred thirty-two million, eight hundred forty thousand, eight hundred twenty-one".