68742103 has 4 divisors (see below), whose sum is σ = 69009840. Its totient is φ = 68474368.

The previous prime is 68742083. The next prime is 68742127. The reversal of 68742103 is 30124786.

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 68742103 - 2⁵ = 68742071 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 (68742803) 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, 133483 + ... + 133996.

It is an arithmetic number, because the mean of its divisors is an integer number (17252460).

Almost surely, 2^68742103 is an apocalyptic number.

68742103 is a deficient number, since it is larger than the sum of its proper divisors (267737).

68742103 is a wasteful number, since it uses less digits than its factorization.

68742103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267736.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 68742103 is about 8291.0857551952. The cubic root of 68742103 is about 409.6449494147.

Adding to 68742103 its reverse (30124786), we get a palindrome (98866889).

The spelling of 68742103 in words is "sixty-eight million, seven hundred forty-two thousand, one hundred three".