68543141 has 2 divisors, whose sum is σ = 68543142. Its totient is φ = 68543140.

The previous prime is 68543117. The next prime is 68543177. The reversal of 68543141 is 14134586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39112516 + 29430625 = 6254^2 + 5425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68543141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68543098 and 68543107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68563141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34271570 + 34271571.

It is an arithmetic number, because the mean of its divisors is an integer number (34271571).

Almost surely, 2^68543141 is an apocalyptic number.

It is an amenable number.

68543141 is a deficient number, since it is larger than the sum of its proper divisors (1).

68543141 is an equidigital number, since it uses as much as digits as its factorization.

68543141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 68543141 is about 8279.0785115253. The cubic root of 68543141 is about 409.2493522752.

The spelling of 68543141 in words is "sixty-eight million, five hundred forty-three thousand, one hundred forty-one".