143321342 has 4 divisors (see below), whose sum is σ = 214982016. Its totient is φ = 71660670.

The previous prime is 143321341. The next prime is 143321429. The reversal of 143321342 is 243123341.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143321341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35830334 + ... + 35830337.

It is an arithmetic number, because the mean of its divisors is an integer number (53745504).

Almost surely, 2^143321342 is an apocalyptic number.

143321342 is a deficient number, since it is larger than the sum of its proper divisors (71660674).

143321342 is an equidigital number, since it uses as much as digits as its factorization.

143321342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71660673.

The product of its digits is 1728, while the sum is 23.

The square root of 143321342 is about 11971.6891874121. The cubic root of 143321342 is about 523.3235619183.

Adding to 143321342 its reverse (243123341), we get a palindrome (386444683).

The spelling of 143321342 in words is "one hundred forty-three million, three hundred twenty-one thousand, three hundred forty-two".