32143121 has 16 divisors (see below), whose sum is σ = 34867584. Its totient is φ = 29551104.

The previous prime is 32143109. The next prime is 32143123. The reversal of 32143121 is 12134123.

It is a cyclic number.

It is not a de Polignac number, because 32143121 - 2¹⁸ = 31880977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32143121.

It is not an unprimeable number, because it can be changed into a prime (32143123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90881 + ... + 91233.

It is an arithmetic number, because the mean of its divisors is an integer number (2179224).

Almost surely, 2^32143121 is an apocalyptic number.

It is an amenable number.

32143121 is a deficient number, since it is larger than the sum of its proper divisors (2724463).

32143121 is a wasteful number, since it uses less digits than its factorization.

32143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520.

The product of its digits is 144, while the sum is 17.

The square root of 32143121 is about 5669.4903651034. The cubic root of 32143121 is about 317.9528198929.

Adding to 32143121 its reverse (12134123), we get a palindrome (44277244).

The spelling of 32143121 in words is "thirty-two million, one hundred forty-three thousand, one hundred twenty-one".