11162261 has 8 divisors (see below), whose sum is σ = 12247200. Its totient is φ = 10089040.

The previous prime is 11162243. The next prime is 11162273. The reversal of 11162261 is 16226111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11162261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11162461) 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, 866 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^11162261 is an apocalyptic number.

11162261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11162261 is a deficient number, since it is larger than the sum of its proper divisors (1084939).

11162261 is a wasteful number, since it uses less digits than its factorization.

11162261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859.

The product of its digits is 144, while the sum is 20.

The square root of 11162261 is about 3340.9970068828. The cubic root of 11162261 is about 223.4862068104.

Adding to 11162261 its sum of digits (20), we get a square (11162281 = 3341²).

Adding to 11162261 its reverse (16226111), we get a palindrome (27388372).

It can be divided in two parts, 11 and 162261, that multiplied together give a palindrome (1784871).

The spelling of 11162261 in words is "eleven million, one hundred sixty-two thousand, two hundred sixty-one".