402144543 has 6 divisors (see below), whose sum is σ = 580875464. Its totient is φ = 268096356.

The previous prime is 402144539. The next prime is 402144569. The reversal of 402144543 is 345441204.

It is a happy number.

It is not a de Polignac number, because 402144543 - 2² = 402144539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402144583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22341355 + ... + 22341372.

Almost surely, 2^402144543 is an apocalyptic number.

402144543 is a deficient number, since it is larger than the sum of its proper divisors (178730921).

402144543 is a wasteful number, since it uses less digits than its factorization.

402144543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44682733 (or 44682730 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 402144543 is about 20053.5419066059. The cubic root of 402144543 is about 738.1207141644.

Adding to 402144543 its reverse (345441204), we get a palindrome (747585747).

The spelling of 402144543 in words is "four hundred two million, one hundred forty-four thousand, five hundred forty-three".