132100421 has 4 divisors (see below), whose sum is σ = 139871052. Its totient is φ = 124329792.

The previous prime is 132100417. The next prime is 132100427. The reversal of 132100421 is 124001231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124001231 = 73 ⋅1698647.

It can be written as a sum of positive squares in 2 ways, for example, as 106708900 + 25391521 = 10330^2 + 5039^2 .

It is a cyclic number.

It is not a de Polignac number, because 132100421 - 2² = 132100417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 132100396 and 132100405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132100427) 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, 3885290 + ... + 3885323.

It is an arithmetic number, because the mean of its divisors is an integer number (34967763).

Almost surely, 2^132100421 is an apocalyptic number.

It is an amenable number.

132100421 is a deficient number, since it is larger than the sum of its proper divisors (7770631).

132100421 is an equidigital number, since it uses as much as digits as its factorization.

132100421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770630.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 132100421 is about 11493.4947252783. The cubic root of 132100421 is about 509.2934223982.

Adding to 132100421 its reverse (124001231), we get a palindrome (256101652).

The spelling of 132100421 in words is "one hundred thirty-two million, one hundred thousand, four hundred twenty-one".