11749813 has 2 divisors, whose sum is σ = 11749814. Its totient is φ = 11749812.

The previous prime is 11749807. The next prime is 11749817. The reversal of 11749813 is 31894711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7518564 + 4231249 = 2742^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 11749813 - 2⁵ = 11749781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11749817) 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 as a sum of consecutive naturals, namely, 5874906 + 5874907.

It is an arithmetic number, because the mean of its divisors is an integer number (5874907).

Almost surely, 2^11749813 is an apocalyptic number.

It is an amenable number.

11749813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11749813 is an equidigital number, since it uses as much as digits as its factorization.

11749813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 11749813 is about 3427.8000233386. The cubic root of 11749813 is about 227.3405911422.

The spelling of 11749813 in words is "eleven million, seven hundred forty-nine thousand, eight hundred thirteen".