68144701 has 4 divisors (see below), whose sum is σ = 68161212. Its totient is φ = 68128192.

The previous prime is 68144683. The next prime is 68144707. The reversal of 68144701 is 10744186.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 47623801 + 20520900 = 6901^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 68144701 - 2⁵ = 68144669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68144707) 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, 4101 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (17040303).

Almost surely, 2^68144701 is an apocalyptic number.

It is an amenable number.

68144701 is a deficient number, since it is larger than the sum of its proper divisors (16511).

68144701 is an equidigital number, since it uses as much as digits as its factorization.

68144701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16510.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 68144701 is about 8254.9803755067. The cubic root of 68144701 is about 408.4548244721.

Adding to 68144701 its reverse (10744186), we get a palindrome (78888887).

The spelling of 68144701 in words is "sixty-eight million, one hundred forty-four thousand, seven hundred one".