132432421 has 4 divisors (see below), whose sum is σ = 144471744. Its totient is φ = 120393100.

The previous prime is 132432409. The next prime is 132432437. The reversal of 132432421 is 124234231.

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 132432421 - 2⁹ = 132431909 is a prime.

It is a super-2 number, since 2×132432421² = 35076692263842482, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132432392 and 132432401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132432721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6019645 + ... + 6019666.

It is an arithmetic number, because the mean of its divisors is an integer number (36117936).

Almost surely, 2^132432421 is an apocalyptic number.

132432421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

132432421 is a deficient number, since it is larger than the sum of its proper divisors (12039323).

132432421 is a wasteful number, since it uses less digits than its factorization.

132432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12039322.

The product of its digits is 1152, while the sum is 22.

The square root of 132432421 is about 11507.9286146552. The cubic root of 132432421 is about 509.7197242517.

Adding to 132432421 its reverse (124234231), we get a palindrome (256666652).

The spelling of 132432421 in words is "one hundred thirty-two million, four hundred thirty-two thousand, four hundred twenty-one".