11278144 has 14 divisors (see below), whose sum is σ = 22380194. Its totient is φ = 5639040.

The previous prime is 11278139. The next prime is 11278147. The reversal of 11278144 is 44187211.

It can be written as a sum of positive squares in only one way, i.e., 9535744 + 1742400 = 3088^2 + 1320^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11278147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88047 + ... + 88174.

Almost surely, 2^11278144 is an apocalyptic number.

It is an amenable number.

11278144 is a deficient number, since it is larger than the sum of its proper divisors (11102050).

11278144 is an equidigital number, since it uses as much as digits as its factorization.

11278144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176233 (or 176223 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 11278144 is about 3358.2948054035. The cubic root of 11278144 is about 224.2569330704.

The spelling of 11278144 in words is "eleven million, two hundred seventy-eight thousand, one hundred forty-four".