4032121 has 4 divisors (see below), whose sum is σ = 4036752. Its totient is φ = 4027492.

The previous prime is 4032113. The next prime is 4032151. The reversal of 4032121 is 1212304.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4032121 - 2³ = 4032113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4032101) 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, 571 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (1009188).

Almost surely, 2^4032121 is an apocalyptic number.

It is an amenable number.

4032121 is a deficient number, since it is larger than the sum of its proper divisors (4631).

4032121 is a wasteful number, since it uses less digits than its factorization.

4032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4032121 is about 2008.0141931769. The cubic root of 4032121 is about 159.1638804491.

Adding to 4032121 its reverse (1212304), we get a palindrome (5244425).

The spelling of 4032121 in words is "four million, thirty-two thousand, one hundred twenty-one".