11722481 has 8 divisors (see below), whose sum is σ = 11894784. Its totient is φ = 11551680.

The previous prime is 11722429. The next prime is 11722489. The reversal of 11722481 is 18422711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11722481 is a prime.

It is a super-2 number, since 2×11722481² = 274833121590722, 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 11722481.

It is not an unprimeable number, because it can be changed into a prime (11722489) 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, 30416 + ... + 30798.

It is an arithmetic number, because the mean of its divisors is an integer number (1486848).

Almost surely, 2^11722481 is an apocalyptic number.

It is an amenable number.

11722481 is a deficient number, since it is larger than the sum of its proper divisors (172303).

11722481 is a wasteful number, since it uses less digits than its factorization.

11722481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751.

The product of its digits is 896, while the sum is 26.

The square root of 11722481 is about 3423.8108884692. The cubic root of 11722481 is about 227.1641770642.

The spelling of 11722481 in words is "eleven million, seven hundred twenty-two thousand, four hundred eighty-one".