68142307 has 16 divisors (see below), whose sum is σ = 76548672. Its totient is φ = 60318720.

The previous prime is 68142301. The next prime is 68142311. The reversal of 68142307 is 70324186.

It is not a de Polignac number, because 68142307 - 2³ = 68142299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68142301) 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 15 ways as a sum of consecutive naturals, for example, 22423 + ... + 25279.

It is an arithmetic number, because the mean of its divisors is an integer number (4784292).

Almost surely, 2^68142307 is an apocalyptic number.

68142307 is a deficient number, since it is larger than the sum of its proper divisors (8406365).

68142307 is a wasteful number, since it uses less digits than its factorization.

68142307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 68142307 is about 8254.8353708599. The cubic root of 68142307 is about 408.4500412570.

The spelling of 68142307 in words is "sixty-eight million, one hundred forty-two thousand, three hundred seven".