11559749 has 2 divisors, whose sum is σ = 11559750. Its totient is φ = 11559748.

The previous prime is 11559703. The next prime is 11559761. The reversal of 11559749 is 94795511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8514724 + 3045025 = 2918^2 + 1745^2 .

It is an emirp because it is prime and its reverse (94795511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11559749 - 2²⁰ = 10511173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11589749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5779874 + 5779875.

It is an arithmetic number, because the mean of its divisors is an integer number (5779875).

Almost surely, 2^11559749 is an apocalyptic number.

It is an amenable number.

11559749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11559749 is an equidigital number, since it uses as much as digits as its factorization.

11559749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 41.

The square root of 11559749 is about 3399.9630880349. The cubic root of 11559749 is about 226.1081073617.

The spelling of 11559749 in words is "eleven million, five hundred fifty-nine thousand, seven hundred forty-nine".