68820134 has 4 divisors (see below), whose sum is σ = 103230204. Its totient is φ = 34410066.

The previous prime is 68820127. The next prime is 68820149. The reversal of 68820134 is 43102886.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68820134.

It is a congruent number.

It is an unprimeable number.

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, 17205032 + ... + 17205035.

It is an arithmetic number, because the mean of its divisors is an integer number (25807551).

Almost surely, 2^68820134 is an apocalyptic number.

68820134 is a deficient number, since it is larger than the sum of its proper divisors (34410070).

68820134 is a wasteful number, since it uses less digits than its factorization.

68820134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34410069.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 68820134 is about 8295.7901371720. The cubic root of 68820134 is about 409.7998904503.

The spelling of 68820134 in words is "sixty-eight million, eight hundred twenty thousand, one hundred thirty-four".