67040143 has 2 divisors, whose sum is σ = 67040144. Its totient is φ = 67040142.

The previous prime is 67040119. The next prime is 67040161. The reversal of 67040143 is 34104076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67040143 - 2⁹ = 67039631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67040243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33520071 + 33520072.

It is an arithmetic number, because the mean of its divisors is an integer number (33520072).

Almost surely, 2^67040143 is an apocalyptic number.

67040143 is a deficient number, since it is larger than the sum of its proper divisors (1).

67040143 is an equidigital number, since it uses as much as digits as its factorization.

67040143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 67040143 is about 8187.8045286878. The cubic root of 67040143 is about 406.2359096336.

The spelling of 67040143 in words is "sixty-seven million, forty thousand, one hundred forty-three".