143321434 has 16 divisors (see below), whose sum is σ = 220216320. Its totient is φ = 69930640.

The previous prime is 143321429. The next prime is 143321473. The reversal of 143321434 is 434123341.

It is a junction number, because it is equal to n+sod(n) for n = 143321399 and 143321408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16707 + ... + 23785.

It is an arithmetic number, because the mean of its divisors is an integer number (13763520).

Almost surely, 2^143321434 is an apocalyptic number.

143321434 is a deficient number, since it is larger than the sum of its proper divisors (76894886).

143321434 is a wasteful number, since it uses less digits than its factorization.

143321434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325.

The product of its digits is 3456, while the sum is 25.

The square root of 143321434 is about 11971.6930298099. The cubic root of 143321434 is about 523.3236738946.

Adding to 143321434 its reverse (434123341), we get a palindrome (577444775).

The spelling of 143321434 in words is "one hundred forty-three million, three hundred twenty-one thousand, four hundred thirty-four".