11540863 has 2 divisors, whose sum is σ = 11540864. Its totient is φ = 11540862.

The previous prime is 11540861. The next prime is 11540953. The reversal of 11540863 is 36804511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11540863 - 2¹ = 11540861 is a prime.

Together with 11540861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11540861) 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, 5770431 + 5770432.

It is an arithmetic number, because the mean of its divisors is an integer number (5770432).

Almost surely, 2^11540863 is an apocalyptic number.

11540863 is a deficient number, since it is larger than the sum of its proper divisors (1).

11540863 is an equidigital number, since it uses as much as digits as its factorization.

11540863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 11540863 is about 3397.1845696105. The cubic root of 11540863 is about 225.9849038393.

It can be divided in two parts, 11540 and 863, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 11540863 in words is "eleven million, five hundred forty thousand, eight hundred sixty-three".