67655141 has 2 divisors, whose sum is σ = 67655142. Its totient is φ = 67655140.

The previous prime is 67655131. The next prime is 67655149. The reversal of 67655141 is 14155676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63266116 + 4389025 = 7954^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67655141 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67655149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33827570 + 33827571.

It is an arithmetic number, because the mean of its divisors is an integer number (33827571).

Almost surely, 2^67655141 is an apocalyptic number.

It is an amenable number.

67655141 is a deficient number, since it is larger than the sum of its proper divisors (1).

67655141 is an equidigital number, since it uses as much as digits as its factorization.

67655141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 35.

The square root of 67655141 is about 8225.2745242940. The cubic root of 67655141 is about 407.4743426705.

The spelling of 67655141 in words is "sixty-seven million, six hundred fifty-five thousand, one hundred forty-one".