143983140 has 96 divisors (see below), whose sum is σ = 485022720. Its totient is φ = 31176576.

The previous prime is 143983123. The next prime is 143983153. The reversal of 143983140 is 41389341.

It is a super-2 number, since 2×143983140² = 41462289208519200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1042 + ... + 17001.

It is an arithmetic number, because the mean of its divisors is an integer number (5052320).

Almost surely, 2^143983140 is an apocalyptic number.

143983140 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 143983140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242511360).

143983140 is an abundant number, since it is smaller than the sum of its proper divisors (341039580).

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

143983140 is a wasteful number, since it uses less digits than its factorization.

143983140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081 (or 18079 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 143983140 is about 11999.2974794360. The cubic root of 143983140 is about 524.1278217008.

The spelling of 143983140 in words is "one hundred forty-three million, nine hundred eighty-three thousand, one hundred forty".