11147992 has 16 divisors (see below), whose sum is σ = 20964960. Its totient is φ = 5557344.

The previous prime is 11147953. The next prime is 11148001. The reversal of 11147992 is 29974111.

It is a super-3 number, since 3×11147992³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1038 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (1310310).

Almost surely, 2^11147992 is an apocalyptic number.

It is an amenable number.

11147992 is a deficient number, since it is larger than the sum of its proper divisors (9816968).

11147992 is a wasteful number, since it uses less digits than its factorization.

11147992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4166 counting only the distinct ones).

The product of its digits is 4536, while the sum is 34.

The square root of 11147992 is about 3338.8608835949. The cubic root of 11147992 is about 223.3909368504.

The spelling of 11147992 in words is "eleven million, one hundred forty-seven thousand, nine hundred ninety-two".