73806143 has 2 divisors, whose sum is σ = 73806144. Its totient is φ = 73806142.

The previous prime is 73806119. The next prime is 73806169. The reversal of 73806143 is 34160837.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73806143 - 2⁶ = 73806079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73806113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36903071 + 36903072.

It is an arithmetic number, because the mean of its divisors is an integer number (36903072).

Almost surely, 2^73806143 is an apocalyptic number.

73806143 is a deficient number, since it is larger than the sum of its proper divisors (1).

73806143 is an equidigital number, since it uses as much as digits as its factorization.

73806143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 73806143 is about 8591.0501686348. The cubic root of 73806143 is about 419.4667135576.

The spelling of 73806143 in words is "seventy-three million, eight hundred six thousand, one hundred forty-three".