132721343 has 8 divisors (see below), whose sum is σ = 135643200. Its totient is φ = 129830688.

The previous prime is 132721333. The next prime is 132721357. The reversal of 132721343 is 343127231.

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 132721343 - 2⁸ = 132721087 is a prime.

It is a super-2 number, since 2×132721343² = 35229909775447298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132721333) 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, 905 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (16955400).

Almost surely, 2^132721343 is an apocalyptic number.

132721343 is a deficient number, since it is larger than the sum of its proper divisors (2921857).

132721343 is a wasteful number, since it uses less digits than its factorization.

132721343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15601.

The product of its digits is 3024, while the sum is 26.

The square root of 132721343 is about 11520.4749468067. The cubic root of 132721343 is about 510.0901327306.

Adding to 132721343 its reverse (343127231), we get a palindrome (475848574).

The spelling of 132721343 in words is "one hundred thirty-two million, seven hundred twenty-one thousand, three hundred forty-three".