67775137 has 2 divisors, whose sum is σ = 67775138. Its totient is φ = 67775136.

The previous prime is 67775101. The next prime is 67775143. The reversal of 67775137 is 73157776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66438801 + 1336336 = 8151^2 + 1156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67775137 is a prime.

It is equal to p_3994846 and since 67775137 and 3994846 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 67775093 and 67775102.

It is not a weakly prime, because it can be changed into another prime (67775177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33887568 + 33887569.

It is an arithmetic number, because the mean of its divisors is an integer number (33887569).

Almost surely, 2^67775137 is an apocalyptic number.

It is an amenable number.

67775137 is a deficient number, since it is larger than the sum of its proper divisors (1).

67775137 is an equidigital number, since it uses as much as digits as its factorization.

67775137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216090, while the sum is 43.

The square root of 67775137 is about 8232.5656389731. The cubic root of 67775137 is about 407.7151049214.

The spelling of 67775137 in words is "sixty-seven million, seven hundred seventy-five thousand, one hundred thirty-seven".