143998816 has 36 divisors (see below), whose sum is σ = 306994212. Its totient is φ = 66458496.

The previous prime is 143998807. The next prime is 143998817. The reversal of 143998816 is 618899341.

It is a self number, because there is not a number n which added to its sum of digits gives 143998816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143998817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7906 + ... + 18721.

It is an arithmetic number, because the mean of its divisors is an integer number (8527617).

Almost surely, 2^143998816 is an apocalyptic number.

143998816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

143998816 is an abundant number, since it is smaller than the sum of its proper divisors (162995396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143998816 is a wasteful number, since it uses less digits than its factorization.

143998816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26663 (or 26642 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 143998816 is about 11999.9506665653. The cubic root of 143998816 is about 524.1468422833.

The spelling of 143998816 in words is "one hundred forty-three million, nine hundred ninety-eight thousand, eight hundred sixteen".