11522681 has 8 divisors (see below), whose sum is σ = 11848704. Its totient is φ = 11198880.

The previous prime is 11522671. The next prime is 11522711. The reversal of 11522681 is 18622511.

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 11522681 - 2¹⁸ = 11260537 is a prime.

It is a super-2 number, since 2×11522681² = 265544354855522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11522681.

It is not an unprimeable number, because it can be changed into a prime (11522611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18680 + ... + 19286.

It is an arithmetic number, because the mean of its divisors is an integer number (1481088).

Almost surely, 2^11522681 is an apocalyptic number.

It is an amenable number.

11522681 is a deficient number, since it is larger than the sum of its proper divisors (326023).

11522681 is an equidigital number, since it uses as much as digits as its factorization.

11522681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its digits is 960, while the sum is 26.

The square root of 11522681 is about 3394.5074753195. The cubic root of 11522681 is about 225.8661658335.

The spelling of 11522681 in words is "eleven million, five hundred twenty-two thousand, six hundred eighty-one".