201051513 has 12 divisors (see below), whose sum is σ = 312746980. Its totient is φ = 123723936.

The previous prime is 201051479. The next prime is 201051553. The reversal of 201051513 is 315150102.

It can be written as a sum of positive squares in 2 ways, for example, as 104284944 + 96766569 = 10212^2 + 9837^2 .

It is not a de Polignac number, because 201051513 - 2⁶ = 201051449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201051553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 859078 + ... + 859311.

Almost surely, 2^201051513 is an apocalyptic number.

It is an amenable number.

201051513 is a deficient number, since it is larger than the sum of its proper divisors (111695467).

201051513 is a wasteful number, since it uses less digits than its factorization.

201051513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718408 (or 1718405 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 201051513 is about 14179.2634858091. The cubic root of 201051513 is about 585.8266376325.

The spelling of 201051513 in words is "two hundred one million, fifty-one thousand, five hundred thirteen".