11863541 has 2 divisors, whose sum is σ = 11863542. Its totient is φ = 11863540.

The previous prime is 11863519. The next prime is 11863549. The reversal of 11863541 is 14536811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5982916 + 5880625 = 2446^2 + 2425^2 .

It is a cyclic number.

It is not a de Polignac number, because 11863541 - 2⁶ = 11863477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11863549) 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, 5931770 + 5931771.

It is an arithmetic number, because the mean of its divisors is an integer number (5931771).

Almost surely, 2^11863541 is an apocalyptic number.

It is an amenable number.

11863541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11863541 is an equidigital number, since it uses as much as digits as its factorization.

11863541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 11863541 is about 3444.3491402586. The cubic root of 11863541 is about 228.0717238697.

The spelling of 11863541 in words is "eleven million, eight hundred sixty-three thousand, five hundred forty-one".