68115219 has 8 divisors (see below), whose sum is σ = 91016640. Its totient is φ = 45311976.

The previous prime is 68115211. The next prime is 68115241. The reversal of 68115219 is 91251186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68115219 - 2³ = 68115211 is a prime.

It is a super-2 number, since 2×68115219² = 9279366118835922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68115219.

It is not an unprimeable number, because it can be changed into a prime (68115211) 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 7 ways as a sum of consecutive naturals, for example, 22909 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (11377080).

Almost surely, 2^68115219 is an apocalyptic number.

68115219 is a deficient number, since it is larger than the sum of its proper divisors (22901421).

68115219 is a wasteful number, since it uses less digits than its factorization.

68115219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49089.

The product of its digits is 4320, while the sum is 33.

The square root of 68115219 is about 8253.1944724452. The cubic root of 68115219 is about 408.3959115902.

The spelling of 68115219 in words is "sixty-eight million, one hundred fifteen thousand, two hundred nineteen".