1113144 has 16 divisors (see below), whose sum is σ = 2782920. Its totient is φ = 371040.

The previous prime is 1113137. The next prime is 1113149. The reversal of 1113144 is 4413111.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23167 + ... + 23214.

2^1113144 is an apocalyptic number.

It is an amenable number.

1113144 is an abundant number, since it is smaller than the sum of its proper divisors (1669776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1113144 is a wasteful number, since it uses less digits than its factorization.

1113144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46390 (or 46386 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 1113144 is about 1055.0563965969. The cubic root of 1113144 is about 103.6375449654.

Adding to 1113144 its reverse (4413111), we get a palindrome (5526255).

It can be divided in two parts, 11131 and 44, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 1113144 in words is "one million, one hundred thirteen thousand, one hundred forty-four".