143117900 has 72 divisors (see below), whose sum is σ = 340290720. Its totient is φ = 52003840.

The previous prime is 143117881. The next prime is 143117959. The reversal of 143117900 is 9711341.

It is a self number, because there is not a number n which added to its sum of digits gives 143117900.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 47849 + ... + 50751.

It is an arithmetic number, because the mean of its divisors is an integer number (4726260).

Almost surely, 2^143117900 is an apocalyptic number.

143117900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143117900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170145360).

143117900 is an abundant number, since it is smaller than the sum of its proper divisors (197172820).

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

143117900 is a wasteful number, since it uses less digits than its factorization.

143117900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963 (or 2956 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 143117900 is about 11963.1893740758. The cubic root of 143117900 is about 523.0758286176.

The spelling of 143117900 in words is "one hundred forty-three million, one hundred seventeen thousand, nine hundred".