11782261 has 8 divisors (see below), whose sum is σ = 12434400. Its totient is φ = 11133360.

The previous prime is 11782231. The next prime is 11782291. The reversal of 11782261 is 16228711.

It is an interprime number because it is at equal distance from previous prime (11782231) and next prime (11782291).

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 11782261 - 2¹³ = 11774069 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 (11782231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12051 + ... + 12991.

It is an arithmetic number, because the mean of its divisors is an integer number (1554300).

Almost surely, 2^11782261 is an apocalyptic number.

It is an amenable number.

11782261 is a deficient number, since it is larger than the sum of its proper divisors (652139).

11782261 is an equidigital number, since it uses as much as digits as its factorization.

11782261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 1344, while the sum is 28.

The square root of 11782261 is about 3432.5298250707. The cubic root of 11782261 is about 227.5496715596.

The spelling of 11782261 in words is "eleven million, seven hundred eighty-two thousand, two hundred sixty-one".