11810057 has 4 divisors (see below), whose sum is σ = 13497216. Its totient is φ = 10122900.

The previous prime is 11810021. The next prime is 11810059. The reversal of 11810057 is 75001811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11810057 - 2¹⁶ = 11744521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11810059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843569 + ... + 843582.

It is an arithmetic number, because the mean of its divisors is an integer number (3374304).

Almost surely, 2^11810057 is an apocalyptic number.

It is an amenable number.

11810057 is a deficient number, since it is larger than the sum of its proper divisors (1687159).

11810057 is an equidigital number, since it uses as much as digits as its factorization.

11810057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687158.

The product of its (nonzero) digits is 280, while the sum is 23.

The square root of 11810057 is about 3436.5763486354. The cubic root of 11810057 is about 227.7284715186.

Adding to 11810057 its reverse (75001811), we get a palindrome (86811868).

The spelling of 11810057 in words is "eleven million, eight hundred ten thousand, fifty-seven".