201115726 has 64 divisors (see below), whose sum is σ = 373911552. Its totient is φ = 79276032.

The previous prime is 201115697. The next prime is 201115753. The reversal of 201115726 is 627511102.

201115726 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201115726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1467930 + ... + 1468066.

It is an arithmetic number, because the mean of its divisors is an integer number (5842368).

Almost surely, 2^201115726 is an apocalyptic number.

201115726 is a deficient number, since it is larger than the sum of its proper divisors (172795826).

201115726 is a wasteful number, since it uses less digits than its factorization.

201115726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 201115726 is about 14181.5276328046. The cubic root of 201115726 is about 585.8889992319. Note that the first 3 decimals are identical.

Adding to 201115726 its reverse (627511102), we get a palindrome (828626828).

The spelling of 201115726 in words is "two hundred one million, one hundred fifteen thousand, seven hundred twenty-six".