11142766 has 8 divisors (see below), whose sum is σ = 16870680. Its totient is φ = 5519208.

The previous prime is 11142763. The next prime is 11142767. The reversal of 11142766 is 66724111.

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

It is a super-2 number, since 2×11142766² = 248322468261512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142763) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25821 + ... + 26248.

It is an arithmetic number, because the mean of its divisors is an integer number (2108835).

Almost surely, 2^11142766 is an apocalyptic number.

11142766 is a deficient number, since it is larger than the sum of its proper divisors (5727914).

11142766 is a wasteful number, since it uses less digits than its factorization.

11142766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52178.

The product of its digits is 2016, while the sum is 28.

The square root of 11142766 is about 3338.0781896175. The cubic root of 11142766 is about 223.3560240305.

Adding to 11142766 its reverse (66724111), we get a palindrome (77866877).

The spelling of 11142766 in words is "eleven million, one hundred forty-two thousand, seven hundred sixty-six".