68135003 has 4 divisors (see below), whose sum is σ = 68205720. Its totient is φ = 68064288.

The previous prime is 68134999. The next prime is 68135027. The reversal of 68135003 is 30053186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30053186 = 2 ⋅15026593.

It is a cyclic number.

It is not a de Polignac number, because 68135003 - 2² = 68134999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68135033) 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 in 3 ways as a sum of consecutive naturals, for example, 33893 + ... + 35846.

It is an arithmetic number, because the mean of its divisors is an integer number (17051430).

Almost surely, 2^68135003 is an apocalyptic number.

68135003 is a deficient number, since it is larger than the sum of its proper divisors (70717).

68135003 is an equidigital number, since it uses as much as digits as its factorization.

68135003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70716.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 68135003 is about 8254.3929516349. The cubic root of 68135003 is about 408.4354471630.

Adding to 68135003 its reverse (30053186), we get a palindrome (98188189).

The spelling of 68135003 in words is "sixty-eight million, one hundred thirty-five thousand, three".