11317161 has 4 divisors (see below), whose sum is σ = 15089552. Its totient is φ = 7544772.

The previous prime is 11317129. The next prime is 11317169. The reversal of 11317161 is 16171311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11317161 - 2⁵ = 11317129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11317169) 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, 1886191 + ... + 1886196.

It is an arithmetic number, because the mean of its divisors is an integer number (3772388).

Almost surely, 2^11317161 is an apocalyptic number.

It is an amenable number.

11317161 is a deficient number, since it is larger than the sum of its proper divisors (3772391).

11317161 is an equidigital number, since it uses as much as digits as its factorization.

11317161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772390.

The product of its digits is 126, while the sum is 21.

The square root of 11317161 is about 3364.0988392139. The cubic root of 11317161 is about 224.5152427717.

Adding to 11317161 its reverse (16171311), we get a palindrome (27488472).

The spelling of 11317161 in words is "eleven million, three hundred seventeen thousand, one hundred sixty-one".