11545111 has 2 divisors, whose sum is σ = 11545112. Its totient is φ = 11545110.

The previous prime is 11545109. The next prime is 11545133. The reversal of 11545111 is 11154511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11545111 - 2¹ = 11545109 is a prime.

Together with 11545109, 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 (11545181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772555 + 5772556.

It is an arithmetic number, because the mean of its divisors is an integer number (5772556).

Almost surely, 2^11545111 is an apocalyptic number.

11545111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11545111 is an equidigital number, since it uses as much as digits as its factorization.

11545111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100, while the sum is 19.

The square root of 11545111 is about 3397.8097356974. The cubic root of 11545111 is about 226.0126275347.

Adding to 11545111 its reverse (11154511), we get a palindrome (22699622).

The spelling of 11545111 in words is "eleven million, five hundred forty-five thousand, one hundred eleven".