11669261 has 2 divisors, whose sum is σ = 11669262. Its totient is φ = 11669260.

The previous prime is 11669243. The next prime is 11669267. The reversal of 11669261 is 16296611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7645225 + 4024036 = 2765^2 + 2006^2 .

It is a cyclic number.

It is not a de Polignac number, because 11669261 - 2¹⁴ = 11652877 is a prime.

It is a super-2 number, since 2×11669261² = 272343304572242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11669267) 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 as a sum of consecutive naturals, namely, 5834630 + 5834631.

It is an arithmetic number, because the mean of its divisors is an integer number (5834631).

Almost surely, 2^11669261 is an apocalyptic number.

It is an amenable number.

11669261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11669261 is an equidigital number, since it uses as much as digits as its factorization.

11669261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 11669261 is about 3416.0300057230. The cubic root of 11669261 is about 226.8198807934.

The spelling of 11669261 in words is "eleven million, six hundred sixty-nine thousand, two hundred sixty-one".