11512387 has 2 divisors, whose sum is σ = 11512388. Its totient is φ = 11512386.

The previous prime is 11512363. The next prime is 11512399. The reversal of 11512387 is 78321511.

It is a strong prime.

It is an emirp because it is prime and its reverse (78321511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11512387 - 2¹⁵ = 11479619 is a prime.

It is not a weakly prime, because it can be changed into another prime (11512337) 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, 5756193 + 5756194.

It is an arithmetic number, because the mean of its divisors is an integer number (5756194).

Almost surely, 2^11512387 is an apocalyptic number.

11512387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512387 is an equidigital number, since it uses as much as digits as its factorization.

11512387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 11512387 is about 3392.9908635303. The cubic root of 11512387 is about 225.7988852231.

Adding to 11512387 its reverse (78321511), we get a palindrome (89833898).

The spelling of 11512387 in words is "eleven million, five hundred twelve thousand, three hundred eighty-seven".