11743481 has 4 divisors (see below), whose sum is σ = 12434292. Its totient is φ = 11052672.

The previous prime is 11743477. The next prime is 11743517. The reversal of 11743481 is 18434711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3385600 + 8357881 = 1840^2 + 2891^2 .

It is a cyclic number.

It is not a de Polignac number, because 11743481 - 2² = 11743477 is a prime.

It is a super-2 number, since 2×11743481² = 275818691994722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11743411) 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 3 ways as a sum of consecutive naturals, for example, 345380 + ... + 345413.

It is an arithmetic number, because the mean of its divisors is an integer number (3108573).

Almost surely, 2^11743481 is an apocalyptic number.

It is an amenable number.

11743481 is a deficient number, since it is larger than the sum of its proper divisors (690811).

11743481 is an equidigital number, since it uses as much as digits as its factorization.

11743481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690810.

The product of its digits is 2688, while the sum is 29.

The square root of 11743481 is about 3426.8762743933. The cubic root of 11743481 is about 227.2997456897.

The spelling of 11743481 in words is "eleven million, seven hundred forty-three thousand, four hundred eighty-one".