528644141 has 2 divisors, whose sum is σ = 528644142. Its totient is φ = 528644140.

The previous prime is 528644131. The next prime is 528644243. The reversal of 528644141 is 141446825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 471324100 + 57320041 = 21710^2 + 7571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528644141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528644131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264322070 + 264322071.

It is an arithmetic number, because the mean of its divisors is an integer number (264322071).

Almost surely, 2^528644141 is an apocalyptic number.

It is an amenable number.

528644141 is a deficient number, since it is larger than the sum of its proper divisors (1).

528644141 is an equidigital number, since it uses as much as digits as its factorization.

528644141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 35.

The square root of 528644141 is about 22992.2626333295. The cubic root of 528644141 is about 808.5765483834.

The spelling of 528644141 in words is "five hundred twenty-eight million, six hundred forty-four thousand, one hundred forty-one".