68043105 has 64 divisors (see below), whose sum is σ = 131685120. Its totient is φ = 33136128.

The previous prime is 68043089. The next prime is 68043133. The reversal of 68043105 is 50134086.

It is not a de Polignac number, because 68043105 - 2⁴ = 68043089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 240294 + ... + 240576.

It is an arithmetic number, because the mean of its divisors is an integer number (2057580).

Almost surely, 2^68043105 is an apocalyptic number.

68043105 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68043105 is a deficient number, since it is larger than the sum of its proper divisors (63642015).

68043105 is a wasteful number, since it uses less digits than its factorization.

68043105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 68043105 is about 8248.8244617036. The cubic root of 68043105 is about 408.2517369468.

The spelling of 68043105 in words is "sixty-eight million, forty-three thousand, one hundred five".