32163121 has 2 divisors, whose sum is σ = 32163122. Its totient is φ = 32163120.

The previous prime is 32163119. The next prime is 32163139. The reversal of 32163121 is 12136123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 5948721 = 5120^2 + 2439^2 .

It is a cyclic number.

It is not a de Polignac number, because 32163121 - 2¹ = 32163119 is a prime.

Together with 32163119, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32163161) 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 as a sum of consecutive naturals, namely, 16081560 + 16081561.

It is an arithmetic number, because the mean of its divisors is an integer number (16081561).

Almost surely, 2^32163121 is an apocalyptic number.

It is an amenable number.

32163121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32163121 is an equidigital number, since it uses as much as digits as its factorization.

32163121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 32163121 is about 5671.2539177857. The cubic root of 32163121 is about 318.0187514489.

Adding to 32163121 its reverse (12136123), we get a palindrome (44299244).

The spelling of 32163121 in words is "thirty-two million, one hundred sixty-three thousand, one hundred twenty-one".