11051978 has 16 divisors (see below), whose sum is σ = 18996864. Its totient is φ = 4723920.

The previous prime is 11051959. The next prime is 11051993. The reversal of 11051978 is 87915011.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008 + ... + 7628.

It is an arithmetic number, because the mean of its divisors is an integer number (1187304).

Almost surely, 2^11051978 is an apocalyptic number.

11051978 is a deficient number, since it is larger than the sum of its proper divisors (7944886).

11051978 is a wasteful number, since it uses less digits than its factorization.

11051978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 11051978 is about 3324.4515337120. The cubic root of 11051978 is about 222.7477558333.

Adding to 11051978 its reverse (87915011), we get a palindrome (98966989).

The spelling of 11051978 in words is "eleven million, fifty-one thousand, nine hundred seventy-eight".