523845137 has 2 divisors, whose sum is σ = 523845138. Its totient is φ = 523845136.

The previous prime is 523845131. The next prime is 523845167. The reversal of 523845137 is 731548325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507555841 + 16289296 = 22529^2 + 4036^2 .

It is a cyclic number.

It is not a de Polignac number, because 523845137 - 2¹⁶ = 523779601 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 523845137.

It is not a weakly prime, because it can be changed into another prime (523845131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261922568 + 261922569.

It is an arithmetic number, because the mean of its divisors is an integer number (261922569).

Almost surely, 2^523845137 is an apocalyptic number.

It is an amenable number.

523845137 is a deficient number, since it is larger than the sum of its proper divisors (1).

523845137 is an equidigital number, since it uses as much as digits as its factorization.

523845137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 523845137 is about 22887.6634237748. The cubic root of 523845137 is about 806.1223684191.

The spelling of 523845137 in words is "five hundred twenty-three million, eight hundred forty-five thousand, one hundred thirty-seven".