68542313 has 8 divisors (see below), whose sum is σ = 79278528. Its totient is φ = 58042224.

The previous prime is 68542307. The next prime is 68542321. The reversal of 68542313 is 31324586.

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

It is a cyclic number.

It is not a de Polignac number, because 68542313 - 2¹⁶ = 68476777 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68542313.

It is not an unprimeable number, because it can be changed into a prime (68542393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58406 + ... + 59567.

It is an arithmetic number, because the mean of its divisors is an integer number (9909816).

Almost surely, 2^68542313 is an apocalyptic number.

It is an amenable number.

68542313 is a deficient number, since it is larger than the sum of its proper divisors (10736215).

68542313 is a wasteful number, since it uses less digits than its factorization.

68542313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118063.

The product of its digits is 17280, while the sum is 32.

The square root of 68542313 is about 8279.0285058091. The cubic root of 68542313 is about 409.2477043601.

Adding to 68542313 its reverse (31324586), we get a palindrome (99866899).

The spelling of 68542313 in words is "sixty-eight million, five hundred forty-two thousand, three hundred thirteen".