68519 has 4 divisors (see below), whose sum is σ = 74760. Its totient is φ = 62280.

The previous prime is 68507. The next prime is 68521. The reversal of 68519 is 91586.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68519 is a prime.

It is a super-2 number, since 2×68519² = 9389706722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 68491 and 68500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68539) 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, 3104 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (18690).

2⁶⁸⁵¹⁹ is an apocalyptic number.

68519 is a deficient number, since it is larger than the sum of its proper divisors (6241).

68519 is a wasteful number, since it uses less digits than its factorization.

68519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240.

The product of its digits is 2160, while the sum is 29.

The square root of 68519 is about 261.7613416836. The cubic root of 68519 is about 40.9201300549.

The spelling of 68519 in words is "sixty-eight thousand, five hundred nineteen".