728018141 has 2 divisors, whose sum is σ = 728018142. Its totient is φ = 728018140.

The previous prime is 728018107. The next prime is 728018189. The reversal of 728018141 is 141810827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651525625 + 76492516 = 25525^2 + 8746^2 .

It is an emirp because it is prime and its reverse (141810827) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728018141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 728018098 and 728018107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728018191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364009070 + 364009071.

It is an arithmetic number, because the mean of its divisors is an integer number (364009071).

Almost surely, 2^728018141 is an apocalyptic number.

It is an amenable number.

728018141 is a deficient number, since it is larger than the sum of its proper divisors (1).

728018141 is an equidigital number, since it uses as much as digits as its factorization.

728018141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 728018141 is about 26981.8112994662. The cubic root of 728018141 is about 899.5957612600.

Adding to 728018141 its reverse (141810827), we get a palindrome (869828968).

The spelling of 728018141 in words is "seven hundred twenty-eight million, eighteen thousand, one hundred forty-one".