11132261 has 6 divisors (see below), whose sum is σ = 12949830. Its totient is φ = 9541896.

The previous prime is 11132257. The next prime is 11132267. The reversal of 11132261 is 16223111.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 988036 = 3185^2 + 994^2 .

It is not a de Polignac number, because 11132261 - 2² = 11132257 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 (11132267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113546 + ... + 113643.

It is an arithmetic number, because the mean of its divisors is an integer number (2158305).

Almost surely, 2^11132261 is an apocalyptic number.

It is an amenable number.

11132261 is a deficient number, since it is larger than the sum of its proper divisors (1817569).

11132261 is an equidigital number, since it uses as much as digits as its factorization.

11132261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227203 (or 227196 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 11132261 is about 3336.5043084042. The cubic root of 11132261 is about 223.2858112793.

Adding to 11132261 its reverse (16223111), we get a palindrome (27355372).

The spelling of 11132261 in words is "eleven million, one hundred thirty-two thousand, two hundred sixty-one".