11562161 has 8 divisors (see below), whose sum is σ = 12493824. Its totient is φ = 10636560.

The previous prime is 11562157. The next prime is 11562181. The reversal of 11562161 is 16126511.

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 11562161 - 2² = 11562157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11562121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2960 + ... + 5646.

It is an arithmetic number, because the mean of its divisors is an integer number (1561728).

Almost surely, 2^11562161 is an apocalyptic number.

It is an amenable number.

11562161 is a deficient number, since it is larger than the sum of its proper divisors (931663).

11562161 is a wasteful number, since it uses less digits than its factorization.

11562161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031.

The product of its digits is 360, while the sum is 23.

The square root of 11562161 is about 3400.3177792671. The cubic root of 11562161 is about 226.1238324675.

Adding to 11562161 its reverse (16126511), we get a palindrome (27688672).

The spelling of 11562161 in words is "eleven million, five hundred sixty-two thousand, one hundred sixty-one".