32420143 has 8 divisors (see below), whose sum is σ = 37123712. Its totient is φ = 27734616.

The previous prime is 32420123. The next prime is 32420147. The reversal of 32420143 is 34102423.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32420143 - 2¹⁷ = 32289071 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 32420143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32420147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405 + ... + 8062.

It is an arithmetic number, because the mean of its divisors is an integer number (4640464).

Almost surely, 2^32420143 is an apocalyptic number.

32420143 is a deficient number, since it is larger than the sum of its proper divisors (4703569).

32420143 is an equidigital number, since it uses as much as digits as its factorization.

32420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 32420143 is about 5693.8688955753. The cubic root of 32420143 is about 318.8636222895.

Adding to 32420143 its reverse (34102423), we get a palindrome (66522566).

The spelling of 32420143 in words is "thirty-two million, four hundred twenty thousand, one hundred forty-three".