143241420 has 96 divisors (see below), whose sum is σ = 465970176. Its totient is φ = 32198400.

The previous prime is 143241419. The next prime is 143241451. The reversal of 143241420 is 24142341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22825 + ... + 28415.

It is an arithmetic number, because the mean of its divisors is an integer number (4853856).

Almost surely, 2^143241420 is an apocalyptic number.

143241420 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 143241420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232985088).

143241420 is an abundant number, since it is smaller than the sum of its proper divisors (322728756).

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

143241420 is a wasteful number, since it uses less digits than its factorization.

143241420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 143241420 is about 11968.3507635764. The cubic root of 143241420 is about 523.2262680982.

Adding to 143241420 its reverse (24142341), we get a palindrome (167383761).

The spelling of 143241420 in words is "one hundred forty-three million, two hundred forty-one thousand, four hundred twenty".