143455420 has 24 divisors (see below), whose sum is σ = 302047200. Its totient is φ = 57231552.

The previous prime is 143455409. The next prime is 143455463. The reversal of 143455420 is 24554341.

143455420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440 + ... + 16999.

It is an arithmetic number, because the mean of its divisors is an integer number (12585300).

Almost surely, 2^143455420 is an apocalyptic number.

143455420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143455420 is an abundant number, since it is smaller than the sum of its proper divisors (158591780).

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

143455420 is a wasteful number, since it uses less digits than its factorization.

143455420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837 (or 18835 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 143455420 is about 11977.2876729250. The cubic root of 143455420 is about 523.4867018635.

The spelling of 143455420 in words is "one hundred forty-three million, four hundred fifty-five thousand, four hundred twenty".