402032143 has 2 divisors, whose sum is σ = 402032144. Its totient is φ = 402032142.

The previous prime is 402032131. The next prime is 402032159. The reversal of 402032143 is 341230204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402032143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402032143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402032443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201016071 + 201016072.

It is an arithmetic number, because the mean of its divisors is an integer number (201016072).

Almost surely, 2^402032143 is an apocalyptic number.

402032143 is a deficient number, since it is larger than the sum of its proper divisors (1).

402032143 is an equidigital number, since it uses as much as digits as its factorization.

402032143 is an odious number, because the sum of its binary digits is odd.

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

The square root of 402032143 is about 20050.7392133058. The cubic root of 402032143 is about 738.0519391426.

Adding to 402032143 its reverse (341230204), we get a palindrome (743262347).

It can be divided in two parts, 4020 and 32143, that added together give a palindrome (36163).

The spelling of 402032143 in words is "four hundred two million, thirty-two thousand, one hundred forty-three".