11133778 has 8 divisors (see below), whose sum is σ = 16857072. Its totient is φ = 5514756.

The previous prime is 11133739. The next prime is 11133779. The reversal of 11133778 is 87733111.

11133778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11133778² = 247922025106568, which contains 22 as substring.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11133779) 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, 25800 + ... + 26227.

It is an arithmetic number, because the mean of its divisors is an integer number (2107134).

Almost surely, 2^11133778 is an apocalyptic number.

11133778 is a deficient number, since it is larger than the sum of its proper divisors (5723294).

11133778 is a wasteful number, since it uses less digits than its factorization.

11133778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52136.

The product of its digits is 3528, while the sum is 31.

The square root of 11133778 is about 3336.7316343991. The cubic root of 11133778 is about 223.2959532499.

Adding to 11133778 its reverse (87733111), we get a palindrome (98866889).

It can be divided in two parts, 11133 and 778, that added together give a palindrome (11911).

The spelling of 11133778 in words is "eleven million, one hundred thirty-three thousand, seven hundred seventy-eight".