1071144 has 96 divisors (see below), whose sum is σ = 3276000. Its totient is φ = 326592.

The previous prime is 1071139. The next prime is 1071149. The reversal of 1071144 is 4411701.

It is an interprime number because it is at equal distance from previous prime (1071139) and next prime (1071149).

It is a super-2 number, since 2×1071144² = 2294698937472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1071149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36922 + ... + 36950.

It is an arithmetic number, because the mean of its divisors is an integer number (34125).

2^1071144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638000).

1071144 is an abundant number, since it is smaller than the sum of its proper divisors (2204856).

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

1071144 is a wasteful number, since it uses less digits than its factorization.

1071144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1071144 is about 1034.9608688255. The cubic root of 1071144 is about 102.3173507090.

Adding to 1071144 its reverse (4411701), we get a palindrome (5482845).

The spelling of 1071144 in words is "one million, seventy-one thousand, one hundred forty-four".