143432013 has 16 divisors (see below), whose sum is σ = 193910976. Its totient is φ = 94296960.

The previous prime is 143431991. The next prime is 143432021. The reversal of 143432013 is 310234341.

It is not a de Polignac number, because 143432013 - 2²⁴ = 126654797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143432033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65923 + ... + 68063.

It is an arithmetic number, because the mean of its divisors is an integer number (12119436).

Almost surely, 2^143432013 is an apocalyptic number.

It is an amenable number.

143432013 is a deficient number, since it is larger than the sum of its proper divisors (50478963).

143432013 is a wasteful number, since it uses less digits than its factorization.

143432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 143432013 is about 11976.3104919670. The cubic root of 143432013 is about 523.4582286283.

Adding to 143432013 its reverse (310234341), we get a palindrome (453666354).

The spelling of 143432013 in words is "one hundred forty-three million, four hundred thirty-two thousand, thirteen".