11112761 has 6 divisors (see below), whose sum is σ = 12214986. Its totient is φ = 10102400.

The previous prime is 11112743. The next prime is 11112769. The reversal of 11112761 is 16721111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10601536 + 511225 = 3256^2 + 715^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11112761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112769) 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 5 ways as a sum of consecutive naturals, for example, 45800 + ... + 46041.

It is an arithmetic number, because the mean of its divisors is an integer number (2035831).

Almost surely, 2^11112761 is an apocalyptic number.

11112761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112761 is a deficient number, since it is larger than the sum of its proper divisors (1102225).

11112761 is an equidigital number, since it uses as much as digits as its factorization.

11112761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91863 (or 91852 counting only the distinct ones).

The product of its digits is 84, while the sum is 20.

The square root of 11112761 is about 3333.5808074801. The cubic root of 11112761 is about 223.1553610473.

Adding to 11112761 its reverse (16721111), we get a palindrome (27833872).

The spelling of 11112761 in words is "eleven million, one hundred twelve thousand, seven hundred sixty-one".