11615201 has 6 divisors (see below), whose sum is σ = 12577590. Its totient is φ = 10721568.

The previous prime is 11615159. The next prime is 11615221. The reversal of 11615201 is 10251611.

11615201 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 48400 + 11566801 = 220^2 + 3401^2 .

It is not a de Polignac number, because 11615201 - 2¹⁸ = 11353057 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 11615201.

It is not an unprimeable number, because it can be changed into a prime (11615221) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 34196 + ... + 34533.

It is an arithmetic number, because the mean of its divisors is an integer number (2096265).

Almost surely, 2^11615201 is an apocalyptic number.

It is an amenable number.

11615201 is a deficient number, since it is larger than the sum of its proper divisors (962389).

11615201 is an equidigital number, since it uses as much as digits as its factorization.

11615201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68755 (or 68742 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 11615201 is about 3408.1081262190. The cubic root of 11615201 is about 226.4690768941.

Adding to 11615201 its reverse (10251611), we get a palindrome (21866812).

The spelling of 11615201 in words is "eleven million, six hundred fifteen thousand, two hundred one".