11550137 has 2 divisors, whose sum is σ = 11550138. Its totient is φ = 11550136.

The previous prime is 11550113. The next prime is 11550169. The reversal of 11550137 is 73105511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11417641 + 132496 = 3379^2 + 364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11550137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11550337) 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, 5775068 + 5775069.

It is an arithmetic number, because the mean of its divisors is an integer number (5775069).

Almost surely, 2^11550137 is an apocalyptic number.

It is an amenable number.

11550137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11550137 is an equidigital number, since it uses as much as digits as its factorization.

11550137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 11550137 is about 3398.5492493121. The cubic root of 11550137 is about 226.0454199051.

Adding to 11550137 its reverse (73105511), we get a palindrome (84655648).

The spelling of 11550137 in words is "eleven million, five hundred fifty thousand, one hundred thirty-seven".