68148111 has 4 divisors (see below), whose sum is σ = 90864152. Its totient is φ = 45432072.

The previous prime is 68148083. The next prime is 68148133. The reversal of 68148111 is 11184186.

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

It is not a de Polignac number, because 68148111 - 2¹¹ = 68146063 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 (68148151) 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, 11358016 + ... + 11358021.

It is an arithmetic number, because the mean of its divisors is an integer number (22716038).

Almost surely, 2^68148111 is an apocalyptic number.

68148111 is a deficient number, since it is larger than the sum of its proper divisors (22716041).

68148111 is a wasteful number, since it uses less digits than its factorization.

68148111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22716040.

The product of its digits is 1536, while the sum is 30.

The square root of 68148111 is about 8255.1869149039. The cubic root of 68148111 is about 408.4616374632.

The spelling of 68148111 in words is "sixty-eight million, one hundred forty-eight thousand, one hundred eleven".