67561159 has 2 divisors, whose sum is σ = 67561160. Its totient is φ = 67561158.

The previous prime is 67561157. The next prime is 67561163. The reversal of 67561159 is 95116576.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67561159 - 2¹ = 67561157 is a prime.

Together with 67561157, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3982972 and since 67561159 and 3982972 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67561157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33780579 + 33780580.

It is an arithmetic number, because the mean of its divisors is an integer number (33780580).

Almost surely, 2^67561159 is an apocalyptic number.

67561159 is a deficient number, since it is larger than the sum of its proper divisors (1).

67561159 is an equidigital number, since it uses as much as digits as its factorization.

67561159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 40.

The square root of 67561159 is about 8219.5595380775. The cubic root of 67561159 is about 407.2855765290.

The spelling of 67561159 in words is "sixty-seven million, five hundred sixty-one thousand, one hundred fifty-nine".