68135260 has 12 divisors (see below), whose sum is σ = 143084088. Its totient is φ = 27254096.

The previous prime is 68135257. The next prime is 68135261. The reversal of 68135260 is 6253186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68135261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703362 + ... + 1703401.

It is an arithmetic number, because the mean of its divisors is an integer number (11923674).

Almost surely, 2^68135260 is an apocalyptic number.

It is an amenable number.

68135260 is an abundant number, since it is smaller than the sum of its proper divisors (74948828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68135260 is a wasteful number, since it uses less digits than its factorization.

68135260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406772 (or 3406770 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68135260 is about 8254.4085190885. The cubic root of 68135260 is about 408.4359606914.

The spelling of 68135260 in words is "sixty-eight million, one hundred thirty-five thousand, two hundred sixty".