68159803 has 4 divisors (see below), whose sum is σ = 68431608. Its totient is φ = 67888000.

The previous prime is 68159779. The next prime is 68159807. The reversal of 68159803 is 30895186.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68159803 - 2²⁵ = 34605371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68159807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135526 + ... + 136027.

It is an arithmetic number, because the mean of its divisors is an integer number (17107902).

Almost surely, 2^68159803 is an apocalyptic number.

68159803 is a deficient number, since it is larger than the sum of its proper divisors (271805).

68159803 is a wasteful number, since it uses less digits than its factorization.

68159803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271804.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 68159803 is about 8255.8950453600. The cubic root of 68159803 is about 408.4849957060.

The spelling of 68159803 in words is "sixty-eight million, one hundred fifty-nine thousand, eight hundred three".