143663920 has 80 divisors (see below), whose sum is σ = 351620352. Its totient is φ = 54512640.

The previous prime is 143663909. The next prime is 143663929. The reversal of 143663920 is 29366341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (143663929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130894 + ... + 131986.

Almost surely, 2^143663920 is an apocalyptic number.

143663920 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 143663920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175810176).

143663920 is an abundant number, since it is smaller than the sum of its proper divisors (207956432).

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

143663920 is a wasteful number, since it uses less digits than its factorization.

143663920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 143663920 is about 11985.9884865621. The cubic root of 143663920 is about 523.7401932534.

It can be divided in two parts, 1436 and 63920, that added together give a palindrome (65356).

The spelling of 143663920 in words is "one hundred forty-three million, six hundred sixty-three thousand, nine hundred twenty".