143212442 has 8 divisors (see below), whose sum is σ = 215636256. Its totient is φ = 71333692.

The previous prime is 143212441. The next prime is 143212451. The reversal of 143212442 is 244212341.

143212442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (143212441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135608 + ... + 136659.

It is an arithmetic number, because the mean of its divisors is an integer number (26954532).

Almost surely, 2^143212442 is an apocalyptic number.

143212442 is a deficient number, since it is larger than the sum of its proper divisors (72423814).

143212442 is a wasteful number, since it uses less digits than its factorization.

143212442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272532.

The product of its digits is 1536, while the sum is 23.

The square root of 143212442 is about 11967.1400927707. The cubic root of 143212442 is about 523.1909825099.

Adding to 143212442 its reverse (244212341), we get a palindrome (387424783).

The spelling of 143212442 in words is "one hundred forty-three million, two hundred twelve thousand, four hundred forty-two".