9115081201 has 4 divisors (see below), whose sum is σ = 9135382500. Its totient is φ = 9094779904.

The previous prime is 9115081189. The next prime is 9115081247. The reversal of 9115081201 is 1021805119.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4545456400 + 4569624801 = 67420^2 + 67599^2 .

It is a cyclic number.

It is not a de Polignac number, because 9115081201 - 2⁵ = 9115081169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9115081201.

It is not an unprimeable number, because it can be changed into a prime (9115084201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10149976 + ... + 10150873.

It is an arithmetic number, because the mean of its divisors is an integer number (2283845625).

Almost surely, 2^9115081201 is an apocalyptic number.

It is an amenable number.

9115081201 is a deficient number, since it is larger than the sum of its proper divisors (20301299).

9115081201 is a wasteful number, since it uses less digits than its factorization.

9115081201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20301298.

The product of its (nonzero) digits is 720, while the sum is 28.

The square root of 9115081201 is about 95472.9343898049. The cubic root of 9115081201 is about 2088.9121725362.

The spelling of 9115081201 in words is "nine billion, one hundred fifteen million, eighty-one thousand, two hundred one".