11810455 has 4 divisors (see below), whose sum is σ = 14172552. Its totient is φ = 9448360.

The previous prime is 11810441. The next prime is 11810459. The reversal of 11810455 is 55401811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11810455 - 2⁹ = 11809943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11810459) 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 in 3 ways as a sum of consecutive naturals, for example, 1181041 + ... + 1181050.

It is an arithmetic number, because the mean of its divisors is an integer number (3543138).

Almost surely, 2^11810455 is an apocalyptic number.

11810455 is a deficient number, since it is larger than the sum of its proper divisors (2362097).

11810455 is an equidigital number, since it uses as much as digits as its factorization.

11810455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362096.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 11810455 is about 3436.6342546160. The cubic root of 11810455 is about 227.7310296466.

The spelling of 11810455 in words is "eleven million, eight hundred ten thousand, four hundred fifty-five".