73641143 has 2 divisors, whose sum is σ = 73641144. Its totient is φ = 73641142.

The previous prime is 73641109. The next prime is 73641157. The reversal of 73641143 is 34114637.

It is a strong prime.

It is an emirp because it is prime and its reverse (34114637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73641143 - 2⁶ = 73641079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73641103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36820571 + 36820572.

It is an arithmetic number, because the mean of its divisors is an integer number (36820572).

Almost surely, 2^73641143 is an apocalyptic number.

73641143 is a deficient number, since it is larger than the sum of its proper divisors (1).

73641143 is an equidigital number, since it uses as much as digits as its factorization.

73641143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 73641143 is about 8581.4417786290. The cubic root of 73641143 is about 419.1538956559.

The spelling of 73641143 in words is "seventy-three million, six hundred forty-one thousand, one hundred forty-three".