73230143 has 4 divisors (see below), whose sum is σ = 83691600. Its totient is φ = 62768688.

The previous prime is 73230127. The next prime is 73230149. The reversal of 73230143 is 34103237.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73230143 - 2⁴ = 73230127 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 (73230149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5230718 + ... + 5230731.

It is an arithmetic number, because the mean of its divisors is an integer number (20922900).

Almost surely, 2^73230143 is an apocalyptic number.

73230143 is a deficient number, since it is larger than the sum of its proper divisors (10461457).

73230143 is a wasteful number, since it uses less digits than its factorization.

73230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461456.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 73230143 is about 8557.4612473560. The cubic root of 73230143 is about 418.3726578307.

The spelling of 73230143 in words is "seventy-three million, two hundred thirty thousand, one hundred forty-three".