68641301 has 4 divisors (see below), whose sum is σ = 68989932. Its totient is φ = 68292672.

The previous prime is 68641277. The next prime is 68641303. The reversal of 68641301 is 10314686.

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 47472100 + 21169201 = 6890^2 + 4601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68641301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68641303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174020 + ... + 174413.

It is an arithmetic number, because the mean of its divisors is an integer number (17247483).

Almost surely, 2^68641301 is an apocalyptic number.

It is an amenable number.

68641301 is a deficient number, since it is larger than the sum of its proper divisors (348631).

68641301 is a wasteful number, since it uses less digits than its factorization.

68641301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348630.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 68641301 is about 8285.0045866010. The cubic root of 68641301 is about 409.4446198321. Note that the first 3 decimals are identical.

Adding to 68641301 its reverse (10314686), we get a palindrome (78955987).

The spelling of 68641301 in words is "sixty-eight million, six hundred forty-one thousand, three hundred one".