132451321 has 4 divisors (see below), whose sum is σ = 134128000. Its totient is φ = 130774644.

The previous prime is 132451303. The next prime is 132451331. The reversal of 132451321 is 123154231.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 132451321 - 2¹⁷ = 132320249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132451292 and 132451301.

It is not an unprimeable number, because it can be changed into a prime (132451331) 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, 838221 + ... + 838378.

It is an arithmetic number, because the mean of its divisors is an integer number (33532000).

Almost surely, 2^132451321 is an apocalyptic number.

It is an amenable number.

132451321 is a deficient number, since it is larger than the sum of its proper divisors (1676679).

132451321 is an equidigital number, since it uses as much as digits as its factorization.

132451321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676678.

The product of its digits is 720, while the sum is 22.

The square root of 132451321 is about 11508.7497583360. The cubic root of 132451321 is about 509.7439711959.

The spelling of 132451321 in words is "one hundred thirty-two million, four hundred fifty-one thousand, three hundred twenty-one".