67140011 has 2 divisors, whose sum is σ = 67140012. Its totient is φ = 67140010.

The previous prime is 67139999. The next prime is 67140019. The reversal of 67140011 is 11004176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67140011 - 2¹⁰ = 67138987 is a prime.

It is not a weakly prime, because it can be changed into another prime (67140019) 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, 33570005 + 33570006.

It is an arithmetic number, because the mean of its divisors is an integer number (33570006).

Almost surely, 2^67140011 is an apocalyptic number.

67140011 is a deficient number, since it is larger than the sum of its proper divisors (1).

67140011 is an equidigital number, since it uses as much as digits as its factorization.

67140011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 67140011 is about 8193.9008414796. The cubic root of 67140011 is about 406.4375293265.

Adding to 67140011 its reverse (11004176), we get a palindrome (78144187).

The spelling of 67140011 in words is "sixty-seven million, one hundred forty thousand, eleven".