67144141 has 2 divisors, whose sum is σ = 67144142. Its totient is φ = 67144140.

The previous prime is 67144139. The next prime is 67144177. The reversal of 67144141 is 14144176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65124900 + 2019241 = 8070^2 + 1421^2 .

It is a cyclic number.

It is not a de Polignac number, because 67144141 - 2¹ = 67144139 is a prime.

Together with 67144139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67147141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33572070 + 33572071.

It is an arithmetic number, because the mean of its divisors is an integer number (33572071).

Almost surely, 2^67144141 is an apocalyptic number.

It is an amenable number.

67144141 is a deficient number, since it is larger than the sum of its proper divisors (1).

67144141 is an equidigital number, since it uses as much as digits as its factorization.

67144141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 67144141 is about 8194.1528543224. The cubic root of 67144141 is about 406.4458629195.

The spelling of 67144141 in words is "sixty-seven million, one hundred forty-four thousand, one hundred forty-one".