143422013 has 32 divisors (see below), whose sum is σ = 184147200. Its totient is φ = 108739584.

The previous prime is 143422003. The next prime is 143422021. The reversal of 143422013 is 310224341.

It is not a de Polignac number, because 143422013 - 2¹⁸ = 143159869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143422003) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 517631 + ... + 517907.

It is an arithmetic number, because the mean of its divisors is an integer number (5754600).

Almost surely, 2^143422013 is an apocalyptic number.

It is an amenable number.

143422013 is a deficient number, since it is larger than the sum of its proper divisors (40725187).

143422013 is a wasteful number, since it uses less digits than its factorization.

143422013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143422013 is about 11975.8929938439. The cubic root of 143422013 is about 523.4460632736.

Adding to 143422013 its reverse (310224341), we get a palindrome (453646354).

The spelling of 143422013 in words is "one hundred forty-three million, four hundred twenty-two thousand, thirteen".