143241442 has 8 divisors (see below), whose sum is σ = 215010000. Its totient is φ = 71571444.

The previous prime is 143241419. The next prime is 143241451. The reversal of 143241442 is 244142341.

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

It is a super-2 number, since 2×143241442² = 41036221412478728, which contains 22 as substring.

It is an unprimeable number.

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, 20892 + ... + 26887.

It is an arithmetic number, because the mean of its divisors is an integer number (26876250).

Almost surely, 2^143241442 is an apocalyptic number.

143241442 is a deficient number, since it is larger than the sum of its proper divisors (71768558).

143241442 is a wasteful number, since it uses less digits than its factorization.

143241442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49280.

The product of its digits is 3072, while the sum is 25.

The square root of 143241442 is about 11968.3516826671. The cubic root of 143241442 is about 523.2262948851.

Adding to 143241442 its reverse (244142341), we get a palindrome (387383783).

The spelling of 143241442 in words is "one hundred forty-three million, two hundred forty-one thousand, four hundred forty-two".