68134907 has 4 divisors (see below), whose sum is σ = 69796776. Its totient is φ = 66473040.

The previous prime is 68134897. The next prime is 68134909. The reversal of 68134907 is 70943186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70943186 = 2 ⋅35471593.

It is a cyclic number.

It is not a de Polignac number, because 68134907 - 2¹⁰ = 68133883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68134909) 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 in 3 ways as a sum of consecutive naturals, for example, 830873 + ... + 830954.

It is an arithmetic number, because the mean of its divisors is an integer number (17449194).

Almost surely, 2^68134907 is an apocalyptic number.

68134907 is a deficient number, since it is larger than the sum of its proper divisors (1661869).

68134907 is a wasteful number, since it uses less digits than its factorization.

68134907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661868.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 68134907 is about 8254.3871365474. The cubic root of 68134907 is about 408.4352553388.

The spelling of 68134907 in words is "sixty-eight million, one hundred thirty-four thousand, nine hundred seven".