132430021 has 4 divisors (see below), whose sum is σ = 138187872. Its totient is φ = 126672172.

The previous prime is 132430009. The next prime is 132430027. The reversal of 132430021 is 120034231.

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 132430021 - 2⁷ = 132429893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132429977 and 132430004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132430027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2878891 + ... + 2878936.

It is an arithmetic number, because the mean of its divisors is an integer number (34546968).

Almost surely, 2^132430021 is an apocalyptic number.

It is an amenable number.

132430021 is a deficient number, since it is larger than the sum of its proper divisors (5757851).

132430021 is an equidigital number, since it uses as much as digits as its factorization.

132430021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757850.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 132430021 is about 11507.8243382492. The cubic root of 132430021 is about 509.7166451097.

Adding to 132430021 its reverse (120034231), we get a palindrome (252464252).

The spelling of 132430021 in words is "one hundred thirty-two million, four hundred thirty thousand, twenty-one".