201015539 has 2 divisors, whose sum is σ = 201015540. Its totient is φ = 201015538.

The previous prime is 201015533. The next prime is 201015571. The reversal of 201015539 is 935510102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201015539 - 2¹² = 201011443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201015533) 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, 100507769 + 100507770.

It is an arithmetic number, because the mean of its divisors is an integer number (100507770).

Almost surely, 2^201015539 is an apocalyptic number.

201015539 is a deficient number, since it is larger than the sum of its proper divisors (1).

201015539 is an equidigital number, since it uses as much as digits as its factorization.

201015539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 201015539 is about 14177.9948864429. The cubic root of 201015539 is about 585.7916950379.

The spelling of 201015539 in words is "two hundred one million, fifteen thousand, five hundred thirty-nine".