201129285 has 16 divisors (see below), whose sum is σ = 367779456. Its totient is φ = 91944768.

The previous prime is 201129283. The next prime is 201129293. The reversal of 201129285 is 582921102.

It is not a de Polignac number, because 201129285 - 2¹ = 201129283 is a prime.

It is a super-2 number, since 2×201129285² = 80905978569222450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201129283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957654 + ... + 957863.

It is an arithmetic number, because the mean of its divisors is an integer number (22986216).

Almost surely, 2^201129285 is an apocalyptic number.

It is an amenable number.

201129285 is a deficient number, since it is larger than the sum of its proper divisors (166650171).

201129285 is a wasteful number, since it uses less digits than its factorization.

201129285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915532.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 201129285 is about 14182.0056762081. The cubic root of 201129285 is about 585.9021655990.

The spelling of 201129285 in words is "two hundred one million, one hundred twenty-nine thousand, two hundred eighty-five".