201126065 has 16 divisors (see below), whose sum is σ = 292056192. Its totient is φ = 129801984.

The previous prime is 201125999. The next prime is 201126071. The reversal of 201126065 is 560621102.

It is a cyclic number.

It is not a de Polignac number, because 201126065 - 2¹² = 201121969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201126065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168419 + ... + 169608.

It is an arithmetic number, because the mean of its divisors is an integer number (18253512).

Almost surely, 2^201126065 is an apocalyptic number.

It is an amenable number.

201126065 is a deficient number, since it is larger than the sum of its proper divisors (90930127).

201126065 is a wasteful number, since it uses less digits than its factorization.

201126065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338056.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 201126065 is about 14181.8921516136. The cubic root of 201126065 is about 585.8990388953.

Adding to 201126065 its reverse (560621102), we get a palindrome (761747167).

The spelling of 201126065 in words is "two hundred one million, one hundred twenty-six thousand, sixty-five".