68132641 has 2 divisors, whose sum is σ = 68132642. Its totient is φ = 68132640.

The previous prime is 68132639. The next prime is 68132653. The reversal of 68132641 is 14623186.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67486225 + 646416 = 8215^2 + 804^2 .

It is a cyclic number.

It is not a de Polignac number, because 68132641 - 2¹ = 68132639 is a prime.

Together with 68132639, it forms a pair of twin primes.

It is equal to p_4014688 and since 68132641 and 4014688 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (68132621) 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 as a sum of consecutive naturals, namely, 34066320 + 34066321.

It is an arithmetic number, because the mean of its divisors is an integer number (34066321).

Almost surely, 2^68132641 is an apocalyptic number.

It is an amenable number.

68132641 is a deficient number, since it is larger than the sum of its proper divisors (1).

68132641 is an equidigital number, since it uses as much as digits as its factorization.

68132641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 68132641 is about 8254.2498750644. The cubic root of 68132641 is about 408.4307274368.

The spelling of 68132641 in words is "sixty-eight million, one hundred thirty-two thousand, six hundred forty-one".