143242442 has 48 divisors (see below), whose sum is σ = 267053760. Its totient is φ = 56236800.

The previous prime is 143242403. The next prime is 143242453. The reversal of 143242442 is 244242341.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1418192 + ... + 1418292.

It is an arithmetic number, because the mean of its divisors is an integer number (5563620).

Almost surely, 2^143242442 is an apocalyptic number.

143242442 is a deficient number, since it is larger than the sum of its proper divisors (123811318).

143242442 is a wasteful number, since it uses less digits than its factorization.

143242442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 186 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 143242442 is about 11968.3934594414. The cubic root of 143242442 is about 523.2275124682.

Adding to 143242442 its reverse (244242341), we get a palindrome (387484783).

The spelling of 143242442 in words is "one hundred forty-three million, two hundred forty-two thousand, four hundred forty-two".