68134215 has 16 divisors (see below), whose sum is σ = 115427808. Its totient is φ = 34200576.

The previous prime is 68134207. The next prime is 68134267. The reversal of 68134215 is 51243186.

It is not a de Polignac number, because 68134215 - 2³ = 68134207 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 133342 + ... + 133851.

It is an arithmetic number, because the mean of its divisors is an integer number (7214238).

Almost surely, 2^68134215 is an apocalyptic number.

68134215 is a deficient number, since it is larger than the sum of its proper divisors (47293593).

68134215 is a wasteful number, since it uses less digits than its factorization.

68134215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267218.

The product of its digits is 5760, while the sum is 30.

The square root of 68134215 is about 8254.3452193375. The cubic root of 68134215 is about 408.4338726009.

The spelling of 68134215 in words is "sixty-eight million, one hundred thirty-four thousand, two hundred fifteen".