68148923 has 2 divisors, whose sum is σ = 68148924. Its totient is φ = 68148922.

The previous prime is 68148917. The next prime is 68148959. The reversal of 68148923 is 32984186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68148923 - 2⁴ = 68148907 is a prime.

It is not a weakly prime, because it can be changed into another prime (68148973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34074461 + 34074462.

It is an arithmetic number, because the mean of its divisors is an integer number (34074462).

Almost surely, 2^68148923 is an apocalyptic number.

68148923 is a deficient number, since it is larger than the sum of its proper divisors (1).

68148923 is an equidigital number, since it uses as much as digits as its factorization.

68148923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 68148923 is about 8255.2360959575. The cubic root of 68148923 is about 408.4632597607.

The spelling of 68148923 in words is "sixty-eight million, one hundred forty-eight thousand, nine hundred twenty-three".