11518477 has 2 divisors, whose sum is σ = 11518478. Its totient is φ = 11518476.

The previous prime is 11518421. The next prime is 11518487. The reversal of 11518477 is 77481511.

11518477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9066121 + 2452356 = 3011^2 + 1566^2 .

It is a cyclic number.

It is not a de Polignac number, because 11518477 - 2⁷ = 11518349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11518487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759238 + 5759239.

It is an arithmetic number, because the mean of its divisors is an integer number (5759239).

Almost surely, 2^11518477 is an apocalyptic number.

It is an amenable number.

11518477 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518477 is an equidigital number, since it uses as much as digits as its factorization.

11518477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7840, while the sum is 34.

The square root of 11518477 is about 3393.8881831905. Note that the first 3 decimals coincide. The cubic root of 11518477 is about 225.8386937298.

Adding to 11518477 its reverse (77481511), we get a palindrome (88999988).

The spelling of 11518477 in words is "eleven million, five hundred eighteen thousand, four hundred seventy-seven".