143213109 has 16 divisors (see below), whose sum is σ = 206203200. Its totient is φ = 87889536.

The previous prime is 143213101. The next prime is 143213129. The reversal of 143213109 is 901312341.

It is not a de Polignac number, because 143213109 - 2³ = 143213101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143213101) 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, 9937 + ... + 19625.

It is an arithmetic number, because the mean of its divisors is an integer number (12887700).

Almost surely, 2^143213109 is an apocalyptic number.

It is an amenable number.

143213109 is a deficient number, since it is larger than the sum of its proper divisors (62990091).

143213109 is a wasteful number, since it uses less digits than its factorization.

143213109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 143213109 is about 11967.1679607165. The cubic root of 143213109 is about 523.1917947481.

It can be divided in two parts, 1432 and 13109, that added together give a palindrome (14541).

The spelling of 143213109 in words is "one hundred forty-three million, two hundred thirteen thousand, one hundred nine".