11312549 has 2 divisors, whose sum is σ = 11312550. Its totient is φ = 11312548.

The previous prime is 11312537. The next prime is 11312557. The reversal of 11312549 is 94521311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11175649 + 136900 = 3343^2 + 370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11312519) 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, 5656274 + 5656275.

It is an arithmetic number, because the mean of its divisors is an integer number (5656275).

Almost surely, 2^11312549 is an apocalyptic number.

It is an amenable number.

11312549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312549 is an equidigital number, since it uses as much as digits as its factorization.

11312549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 11312549 is about 3363.4132960432. The cubic root of 11312549 is about 224.4847402752.

The spelling of 11312549 in words is "eleven million, three hundred twelve thousand, five hundred forty-nine".