201085513 has 2 divisors, whose sum is σ = 201085514. Its totient is φ = 201085512.

The previous prime is 201085457. The next prime is 201085529. The reversal of 201085513 is 315580102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197037369 + 4048144 = 14037^2 + 2012^2 .

It is a cyclic number.

It is not a de Polignac number, because 201085513 - 2²⁵ = 167531081 is a prime.

It is not a weakly prime, because it can be changed into another prime (201085543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100542756 + 100542757.

It is an arithmetic number, because the mean of its divisors is an integer number (100542757).

Almost surely, 2^201085513 is an apocalyptic number.

It is an amenable number.

201085513 is a deficient number, since it is larger than the sum of its proper divisors (1).

201085513 is an equidigital number, since it uses as much as digits as its factorization.

201085513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 201085513 is about 14180.4623690485. The cubic root of 201085513 is about 585.8596589922.

The spelling of 201085513 in words is "two hundred one million, eighty-five thousand, five hundred thirteen".