32142321 has 6 divisors (see below), whose sum is σ = 46427810. Its totient is φ = 21428208.

The previous prime is 32142301. The next prime is 32142349. The reversal of 32142321 is 12324123.

It can be written as a sum of positive squares in only one way, i.e., 19927296 + 12215025 = 4464^2 + 3495^2 .

It is not a de Polignac number, because 32142321 - 2⁵ = 32142289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32142294 and 32142303.

It is not an unprimeable number, because it can be changed into a prime (32142301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1785676 + ... + 1785693.

It is a self-describing number.

Almost surely, 2^32142321 is an apocalyptic number.

It is an amenable number.

32142321 is a deficient number, since it is larger than the sum of its proper divisors (14285489).

32142321 is a wasteful number, since it uses less digits than its factorization.

32142321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571375 (or 3571372 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 32142321 is about 5669.4198115857. The cubic root of 32142321 is about 317.9501820618.

Adding to 32142321 its reverse (12324123), we get a palindrome (44466444).

The spelling of 32142321 in words is "thirty-two million, one hundred forty-two thousand, three hundred twenty-one".