68444135 has 16 divisors (see below), whose sum is σ = 83848800. Its totient is φ = 53619840.

The previous prime is 68444119. The next prime is 68444141. The reversal of 68444135 is 53144486.

It is not a de Polignac number, because 68444135 - 2⁴ = 68444119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68444095 and 68444104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106124 + ... + 106766.

It is an arithmetic number, because the mean of its divisors is an integer number (5240550).

Almost surely, 2^68444135 is an apocalyptic number.

68444135 is a deficient number, since it is larger than the sum of its proper divisors (15404665).

68444135 is a wasteful number, since it uses less digits than its factorization.

68444135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its digits is 46080, while the sum is 35.

The square root of 68444135 is about 8273.0970621648. The cubic root of 68444135 is about 409.0522128531.

The spelling of 68444135 in words is "sixty-eight million, four hundred forty-four thousand, one hundred thirty-five".