143137420 has 24 divisors (see below), whose sum is σ = 304825248. Its totient is φ = 56448000.

The previous prime is 143137403. The next prime is 143137429. The reversal of 143137420 is 24731341.

143137420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (143137429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48981 + ... + 51820.

It is an arithmetic number, because the mean of its divisors is an integer number (12701052).

Almost surely, 2^143137420 is an apocalyptic number.

143137420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143137420 is an abundant number, since it is smaller than the sum of its proper divisors (161687828).

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

143137420 is a wasteful number, since it uses less digits than its factorization.

143137420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100881 (or 100879 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 143137420 is about 11964.0051822122. The cubic root of 143137420 is about 523.0996084896.

Adding to 143137420 its reverse (24731341), we get a palindrome (167868761).

The spelling of 143137420 in words is "one hundred forty-three million, one hundred thirty-seven thousand, four hundred twenty".