201415155 has 32 divisors (see below), whose sum is σ = 327006720. Its totient is φ = 105853440.

The previous prime is 201415079. The next prime is 201415169. The reversal of 201415155 is 551514102.

It is not a de Polignac number, because 201415155 - 2¹³ = 201406963 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560866 + ... + 561224.

It is an arithmetic number, because the mean of its divisors is an integer number (10218960).

Almost surely, 2^201415155 is an apocalyptic number.

201415155 is a deficient number, since it is larger than the sum of its proper divisors (125591565).

201415155 is a wasteful number, since it uses less digits than its factorization.

201415155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 201415155 is about 14192.0807142575. The cubic root of 201415155 is about 586.1796199095.

Adding to 201415155 its reverse (551514102), we get a palindrome (752929257).

The spelling of 201415155 in words is "two hundred one million, four hundred fifteen thousand, one hundred fifty-five".