67133161 has 2 divisors, whose sum is σ = 67133162. Its totient is φ = 67133160.

The previous prime is 67133147. The next prime is 67133189. The reversal of 67133161 is 16133176.

It is an a-pointer prime, because the next prime (67133189) can be obtained adding 67133161 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44475561 + 22657600 = 6669^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 67133161 - 2¹³ = 67124969 is a prime.

It is a super-2 number, since 2×67133161² = 9013722611703842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67133111) 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, 33566580 + 33566581.

It is an arithmetic number, because the mean of its divisors is an integer number (33566581).

Almost surely, 2^67133161 is an apocalyptic number.

It is an amenable number.

67133161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67133161 is an equidigital number, since it uses as much as digits as its factorization.

67133161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 67133161 is about 8193.4828369870. The cubic root of 67133161 is about 406.4237065119.

The spelling of 67133161 in words is "sixty-seven million, one hundred thirty-three thousand, one hundred sixty-one".