11718401 has 2 divisors, whose sum is σ = 11718402. Its totient is φ = 11718400.

The previous prime is 11718397. The next prime is 11718419. The reversal of 11718401 is 10481711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5953600 + 5764801 = 2440^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 11718401 - 2² = 11718397 is a prime.

It is not a weakly prime, because it can be changed into another prime (11718461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5859200 + 5859201.

It is an arithmetic number, because the mean of its divisors is an integer number (5859201).

Almost surely, 2^11718401 is an apocalyptic number.

It is an amenable number.

11718401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11718401 is an equidigital number, since it uses as much as digits as its factorization.

11718401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 11718401 is about 3423.2150093151. The cubic root of 11718401 is about 227.1378192369.

The spelling of 11718401 in words is "eleven million, seven hundred eighteen thousand, four hundred one".