11718051 has 4 divisors (see below), whose sum is σ = 15624072. Its totient is φ = 7812032.

The previous prime is 11718043. The next prime is 11718061. The reversal of 11718051 is 15081711.

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

It is a cyclic number.

It is not a de Polignac number, because 11718051 - 2³ = 11718043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11718061) 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, 1953006 + ... + 1953011.

It is an arithmetic number, because the mean of its divisors is an integer number (3906018).

Almost surely, 2^11718051 is an apocalyptic number.

11718051 is a deficient number, since it is larger than the sum of its proper divisors (3906021).

11718051 is an equidigital number, since it uses as much as digits as its factorization.

11718051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906020.

The product of its (nonzero) digits is 280, while the sum is 24.

The square root of 11718051 is about 3423.1638874001. The cubic root of 11718051 is about 227.1355578638.

Adding to 11718051 its reverse (15081711), we get a palindrome (26799762).

The spelling of 11718051 in words is "eleven million, seven hundred eighteen thousand, fifty-one".