68656141 has 4 divisors (see below), whose sum is σ = 68809500. Its totient is φ = 68502784.

The previous prime is 68656123. The next prime is 68656151. The reversal of 68656141 is 14165686.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13213225 + 55442916 = 3635^2 + 7446^2 .

It is a cyclic number.

It is not a de Polignac number, because 68656141 - 2¹¹ = 68654093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68656141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68656111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76006 + ... + 76903.

It is an arithmetic number, because the mean of its divisors is an integer number (17202375).

Almost surely, 2^68656141 is an apocalyptic number.

It is an amenable number.

68656141 is a deficient number, since it is larger than the sum of its proper divisors (153359).

68656141 is a wasteful number, since it uses less digits than its factorization.

68656141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153358.

The product of its digits is 34560, while the sum is 37.

The square root of 68656141 is about 8285.9001321522. The cubic root of 68656141 is about 409.4741245192.

The spelling of 68656141 in words is "sixty-eight million, six hundred fifty-six thousand, one hundred forty-one".