4105432121 has 6 divisors (see below), whose sum is σ = 4775706810. Its totient is φ = 3518941776.

The previous prime is 4105432103. The next prime is 4105432141. The reversal of 4105432121 is 1212345014.

It can be written as a sum of positive squares in only one way, i.e., 4037204521 + 68227600 = 63539^2 + 8260^2 .

It is not a de Polignac number, because 4105432121 - 2²² = 4101237817 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (4105432141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41892116 + ... + 41892213.

It is an arithmetic number, because the mean of its divisors is an integer number (795951135).

Almost surely, 2^4105432121 is an apocalyptic number.

It is an amenable number.

4105432121 is a deficient number, since it is larger than the sum of its proper divisors (670274689).

4105432121 is an equidigital number, since it uses as much as digits as its factorization.

4105432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83784343 (or 83784336 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4105432121 is about 64073.6460723128. The cubic root of 4105432121 is about 1601.2271992533.

Adding to 4105432121 its reverse (1212345014), we get a palindrome (5317777135).

The spelling of 4105432121 in words is "four billion, one hundred five million, four hundred thirty-two thousand, one hundred twenty-one".