143981760 has 224 divisors, whose sum is σ = 501822720. Its totient is φ = 34762752.

The previous prime is 143981731. The next prime is 143981767. The reversal of 143981760 is 67189341.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (143981767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1035771 + ... + 1035909.

It is an arithmetic number, because the mean of its divisors is an integer number (2240280).

Almost surely, 2^143981760 is an apocalyptic number.

143981760 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 143981760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250911360).

143981760 is an abundant number, since it is smaller than the sum of its proper divisors (357840960).

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

143981760 is a wasteful number, since it uses less digits than its factorization.

143981760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 143981760 is about 11999.2399759318. The cubic root of 143981760 is about 524.1261472022.

The spelling of 143981760 in words is "one hundred forty-three million, nine hundred eighty-one thousand, seven hundred sixty".