201515071 has 16 divisors (see below), whose sum is σ = 210203136. Its totient is φ = 193054176.

The previous prime is 201515057. The next prime is 201515131. The reversal of 201515071 is 170515102.

It is not a de Polignac number, because 201515071 - 2¹¹ = 201513023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201515011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766086 + ... + 766348.

It is an arithmetic number, because the mean of its divisors is an integer number (13137696).

Almost surely, 2^201515071 is an apocalyptic number.

201515071 is a deficient number, since it is larger than the sum of its proper divisors (8688065).

201515071 is a wasteful number, since it uses less digits than its factorization.

201515071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 201515071 is about 14195.6004099862. The cubic root of 201515071 is about 586.2765325786.

The spelling of 201515071 in words is "two hundred one million, five hundred fifteen thousand, seventy-one".