11615161 has 8 divisors (see below), whose sum is σ = 12176640. Its totient is φ = 11058432.

The previous prime is 11615159. The next prime is 11615221. The reversal of 11615161 is 16151611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11615161 - 2¹ = 11615159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11615141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4441 + ... + 6553.

It is an arithmetic number, because the mean of its divisors is an integer number (1522080).

Almost surely, 2^11615161 is an apocalyptic number.

It is an amenable number.

11615161 is a deficient number, since it is larger than the sum of its proper divisors (561479).

11615161 is a wasteful number, since it uses less digits than its factorization.

11615161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375.

The product of its digits is 180, while the sum is 22.

The square root of 11615161 is about 3408.1022578555. The cubic root of 11615161 is about 226.4688169252.

Adding to 11615161 its reverse (16151611), we get a palindrome (27766772).

The spelling of 11615161 in words is "eleven million, six hundred fifteen thousand, one hundred sixty-one".