143420042 has 8 divisors (see below), whose sum is σ = 224483616. Its totient is φ = 68592172.

The previous prime is 143420027. The next prime is 143420047. The reversal of 143420042 is 240024341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 143419996 and 143420023.

It is not an unprimeable number, because it can be changed into a prime (143420047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1558868 + ... + 1558959.

It is an arithmetic number, because the mean of its divisors is an integer number (28060452).

Almost surely, 2^143420042 is an apocalyptic number.

143420042 is a deficient number, since it is larger than the sum of its proper divisors (81063574).

143420042 is a wasteful number, since it uses less digits than its factorization.

143420042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117852.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143420042 is about 11975.8107032468. The cubic root of 143420042 is about 523.4436654155.

Adding to 143420042 its reverse (240024341), we get a palindrome (383444383).

It can be divided in two parts, 143 and 420042, that multiplied together give a palindrome (60066006).

The spelling of 143420042 in words is "one hundred forty-three million, four hundred twenty thousand, forty-two".