11512649 has 2 divisors, whose sum is σ = 11512650. Its totient is φ = 11512648.

The previous prime is 11512609. The next prime is 11512717. The reversal of 11512649 is 94621511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 2271049 = 3040^2 + 1507^2 .

It is an emirp because it is prime and its reverse (94621511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11512649 - 2¹⁶ = 11447113 is a prime.

It is not a weakly prime, because it can be changed into another prime (11512609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5756324 + 5756325.

It is an arithmetic number, because the mean of its divisors is an integer number (5756325).

Almost surely, 2^11512649 is an apocalyptic number.

It is an amenable number.

11512649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512649 is an equidigital number, since it uses as much as digits as its factorization.

11512649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 11512649 is about 3393.0294723153. The cubic root of 11512649 is about 225.8005981276.

The spelling of 11512649 in words is "eleven million, five hundred twelve thousand, six hundred forty-nine".