11142969 has 4 divisors (see below), whose sum is σ = 14857296. Its totient is φ = 7428644.

The previous prime is 11142947. The next prime is 11142983. The reversal of 11142969 is 96924111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11142969 - 2⁷ = 11142841 is a prime.

It is a super-2 number, since 2×11142969² = 248331516269922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11142869) 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, 1857159 + ... + 1857164.

It is an arithmetic number, because the mean of its divisors is an integer number (3714324).

Almost surely, 2^11142969 is an apocalyptic number.

It is an amenable number.

11142969 is a deficient number, since it is larger than the sum of its proper divisors (3714327).

11142969 is an equidigital number, since it uses as much as digits as its factorization.

11142969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3714326.

The product of its digits is 3888, while the sum is 33.

The square root of 11142969 is about 3338.1085961964. The cubic root of 11142969 is about 223.3573803962.

The spelling of 11142969 in words is "eleven million, one hundred forty-two thousand, nine hundred sixty-nine".