68545514 has 4 divisors (see below), whose sum is σ = 102818274. Its totient is φ = 34272756.

The previous prime is 68545511. The next prime is 68545523. The reversal of 68545514 is 41554586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41554586 = 2 ⋅20777293.

It can be written as a sum of positive squares in only one way, i.e., 46689889 + 21855625 = 6833^2 + 4675^2 .

It is not an unprimeable number, because it can be changed into a prime (68545511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17136377 + ... + 17136380.

Almost surely, 2^68545514 is an apocalyptic number.

68545514 is a deficient number, since it is larger than the sum of its proper divisors (34272760).

68545514 is a wasteful number, since it uses less digits than its factorization.

68545514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34272759.

The product of its digits is 96000, while the sum is 38.

The square root of 68545514 is about 8279.2218233358. The cubic root of 68545514 is about 409.2540750308.

The spelling of 68545514 in words is "sixty-eight million, five hundred forty-five thousand, five hundred fourteen".