143994533252 has 24 divisors (see below), whose sum is σ = 252411781440. Its totient is φ = 71876976480.

The previous prime is 143994533239. The next prime is 143994533297. The reversal of 143994533252 is 252335499341.

It is a happy number.

It is a super-2 number, since 2×143994533252² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143994533252.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 6852602 + ... + 6873582.

It is an arithmetic number, because the mean of its divisors is an integer number (10517157560).

Almost surely, 2^143994533252 is an apocalyptic number.

It is an amenable number.

143994533252 is a deficient number, since it is larger than the sum of its proper divisors (108417248188).

143994533252 is a wasteful number, since it uses less digits than its factorization.

143994533252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23771 (or 23769 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 50.

The spelling of 143994533252 in words is "one hundred forty-three billion, nine hundred ninety-four million, five hundred thirty-three thousand, two hundred fifty-two".