32421143 has 2 divisors, whose sum is σ = 32421144. Its totient is φ = 32421142.

The previous prime is 32421127. The next prime is 32421157. The reversal of 32421143 is 34112423.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32421143 - 2⁴ = 32421127 is a prime.

It is a super-2 number, since 2×32421143² = 2102261026852898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32421343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16210571 + 16210572.

It is an arithmetic number, because the mean of its divisors is an integer number (16210572).

Almost surely, 2^32421143 is an apocalyptic number.

32421143 is a deficient number, since it is larger than the sum of its proper divisors (1).

32421143 is an equidigital number, since it uses as much as digits as its factorization.

32421143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 32421143 is about 5693.9567086517. The cubic root of 32421143 is about 318.8669007075.

Adding to 32421143 its reverse (34112423), we get a palindrome (66533566).

The spelling of 32421143 in words is "thirty-two million, four hundred twenty-one thousand, one hundred forty-three".