73143213 has 16 divisors (see below), whose sum is σ = 114574656. Its totient is φ = 40919040.

The previous prime is 73143211. The next prime is 73143223. The reversal of 73143213 is 31234137.

It is not a de Polignac number, because 73143213 - 2¹ = 73143211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73143211) 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 15 ways as a sum of consecutive naturals, for example, 84820 + ... + 85677.

It is an arithmetic number, because the mean of its divisors is an integer number (7160916).

Almost surely, 2^73143213 is an apocalyptic number.

It is an amenable number.

73143213 is a deficient number, since it is larger than the sum of its proper divisors (41431443).

73143213 is a wasteful number, since it uses less digits than its factorization.

73143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170524.

The product of its digits is 1512, while the sum is 24.

The square root of 73143213 is about 8552.3805457896. The cubic root of 73143213 is about 418.2070450827.

It can be divided in two parts, 731432 and 13, that added together give a triangular number (731445 = T₁₂₀₉).

The spelling of 73143213 in words is "seventy-three million, one hundred forty-three thousand, two hundred thirteen".