11506481 has 8 divisors (see below), whose sum is σ = 13171200. Its totient is φ = 9847008.

The previous prime is 11506477. The next prime is 11506489. The reversal of 11506481 is 18460511.

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 11506481 - 2² = 11506477 is a prime.

It is a super-2 number, since 2×11506481² = 264798210006722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11506481.

It is not an unprimeable number, because it can be changed into a prime (11506489) 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, 6560 + ... + 8126.

It is an arithmetic number, because the mean of its divisors is an integer number (1646400).

Almost surely, 2^11506481 is an apocalyptic number.

It is an amenable number.

11506481 is a deficient number, since it is larger than the sum of its proper divisors (1664719).

11506481 is a wasteful number, since it uses less digits than its factorization.

11506481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623.

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

The square root of 11506481 is about 3392.1204282867. The cubic root of 11506481 is about 225.7602660579.

Adding to 11506481 its reverse (18460511), we get a palindrome (29966992).

The spelling of 11506481 in words is "eleven million, five hundred six thousand, four hundred eighty-one".