11142769 has 12 divisors (see below), whose sum is σ = 12970692. Its totient is φ = 9532160.

The previous prime is 11142767. The next prime is 11142821. The reversal of 11142769 is 96724111.

It can be written as a sum of positive squares in 2 ways, for example, as 4460544 + 6682225 = 2112^2 + 2585^2 .

It is not a de Polignac number, because 11142769 - 2¹ = 11142767 is a prime.

It is a super-2 number, since 2×11142769² = 248322601974722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11142769.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 652 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (1080891).

Almost surely, 2^11142769 is an apocalyptic number.

It is an amenable number.

11142769 is a deficient number, since it is larger than the sum of its proper divisors (1827923).

11142769 is a wasteful number, since it uses less digits than its factorization.

11142769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456 (or 5445 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 11142769 is about 3338.0786389778. The cubic root of 11142769 is about 223.3560440755.

It can be divided in two parts, 11142 and 769, that added together give a palindrome (11911).

The spelling of 11142769 in words is "eleven million, one hundred forty-two thousand, seven hundred sixty-nine".