143781480 has 160 divisors (see below), whose sum is σ = 487872000. Its totient is φ = 37977984.

The previous prime is 143781467. The next prime is 143781497. The reversal of 143781480 is 84187341.

It is a super-3 number, since 3×143781480³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 39 ways as a sum of consecutive naturals, for example, 644649 + ... + 644871.

It is an arithmetic number, because the mean of its divisors is an integer number (3049200).

Almost surely, 2^143781480 is an apocalyptic number.

143781480 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 143781480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243936000).

143781480 is an abundant number, since it is smaller than the sum of its proper divisors (344090520).

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

143781480 is a wasteful number, since it uses less digits than its factorization.

143781480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 143781480 is about 11990.8915431673. The cubic root of 143781480 is about 523.8830129451.

The spelling of 143781480 in words is "one hundred forty-three million, seven hundred eighty-one thousand, four hundred eighty".