67140323 has 2 divisors, whose sum is σ = 67140324. Its totient is φ = 67140322.

The previous prime is 67140313. The next prime is 67140331. The reversal of 67140323 is 32304176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67140323 - 2⁸ = 67140067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67140292 and 67140301.

It is not a weakly prime, because it can be changed into another prime (67140313) 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, 33570161 + 33570162.

It is an arithmetic number, because the mean of its divisors is an integer number (33570162).

Almost surely, 2^67140323 is an apocalyptic number.

67140323 is a deficient number, since it is larger than the sum of its proper divisors (1).

67140323 is an equidigital number, since it uses as much as digits as its factorization.

67140323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 67140323 is about 8193.9198800086. The cubic root of 67140323 is about 406.4381588980.

Adding to 67140323 its reverse (32304176), we get a palindrome (99444499).

The spelling of 67140323 in words is "sixty-seven million, one hundred forty thousand, three hundred twenty-three".