143012420 has 24 divisors (see below), whose sum is σ = 300963264. Its totient is φ = 57083616.

The previous prime is 143012407. The next prime is 143012423. The reversal of 143012420 is 24210341.

It is not an unprimeable number, because it can be changed into a prime (143012423) 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, 2399 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (12540136).

Almost surely, 2^143012420 is an apocalyptic number.

143012420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143012420 is an abundant number, since it is smaller than the sum of its proper divisors (157950844).

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

143012420 is a wasteful number, since it uses less digits than its factorization.

143012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179 (or 15177 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143012420 is about 11958.7800381143. The cubic root of 143012420 is about 522.9472921717.

Adding to 143012420 its reverse (24210341), we get a palindrome (167222761).

The spelling of 143012420 in words is "one hundred forty-three million, twelve thousand, four hundred twenty".