67590161 has 2 divisors, whose sum is σ = 67590162. Its totient is φ = 67590160.

The previous prime is 67590143. The next prime is 67590179. The reversal of 67590161 is 16109576.

It is a balanced prime because it is at equal distance from previous prime (67590143) and next prime (67590179).

It can be written as a sum of positive squares in only one way, i.e., 59290000 + 8300161 = 7700^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 67590161 - 2²⁶ = 481297 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67590121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33795080 + 33795081.

It is an arithmetic number, because the mean of its divisors is an integer number (33795081).

Almost surely, 2^67590161 is an apocalyptic number.

It is an amenable number.

67590161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67590161 is an equidigital number, since it uses as much as digits as its factorization.

67590161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 67590161 is about 8221.3235552434. The cubic root of 67590161 is about 407.3438467278.

The spelling of 67590161 in words is "sixty-seven million, five hundred ninety thousand, one hundred sixty-one".