68542103 has 4 divisors (see below), whose sum is σ = 78333840. Its totient is φ = 58750368.

The previous prime is 68542073. The next prime is 68542153. The reversal of 68542103 is 30124586.

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 68542103 - 2¹⁰ = 68541079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68542153) 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, 4895858 + ... + 4895871.

It is an arithmetic number, because the mean of its divisors is an integer number (19583460).

Almost surely, 2^68542103 is an apocalyptic number.

68542103 is a deficient number, since it is larger than the sum of its proper divisors (9791737).

68542103 is an equidigital number, since it uses as much as digits as its factorization.

68542103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791736.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 68542103 is about 8279.0158231519. The cubic root of 68542103 is about 409.2472864086.

Adding to 68542103 its reverse (30124586), we get a palindrome (98666689).

The spelling of 68542103 in words is "sixty-eight million, five hundred forty-two thousand, one hundred three".