143871213 has 8 divisors (see below), whose sum is σ = 191884000. Its totient is φ = 95886288.

The previous prime is 143871193. The next prime is 143871239. The reversal of 143871213 is 312178341.

143871213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143871213 - 2⁶ = 143871149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143871253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14838 + ... + 22536.

It is an arithmetic number, because the mean of its divisors is an integer number (23985500).

Almost surely, 2^143871213 is an apocalyptic number.

It is an amenable number.

143871213 is a deficient number, since it is larger than the sum of its proper divisors (48012787).

143871213 is an equidigital number, since it uses as much as digits as its factorization.

143871213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931.

The product of its digits is 4032, while the sum is 30.

The square root of 143871213 is about 11994.6326746591. The cubic root of 143871213 is about 523.9919741696.

The spelling of 143871213 in words is "one hundred forty-three million, eight hundred seventy-one thousand, two hundred thirteen".