1134123144 has 128 divisors (see below), whose sum is σ = 3566868480. Its totient is φ = 291916800.

The previous prime is 1134123143. The next prime is 1134123161. The reversal of 1134123144 is 4413214311.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is not an unprimeable number, because it can be changed into a prime (1134123143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206109 + ... + 211539.

It is an arithmetic number, because the mean of its divisors is an integer number (27866160).

Almost surely, 2^1134123144 is an apocalyptic number.

1134123144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1134123144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783434240).

1134123144 is an abundant number, since it is smaller than the sum of its proper divisors (2432745336).

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

1134123144 is a wasteful number, since it uses less digits than its factorization.

1134123144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571 (or 5567 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1134123144 is about 33676.7448545729. The cubic root of 1134123144 is about 1042.8457391742.

Adding to 1134123144 its reverse (4413214311), we get a palindrome (5547337455).

The spelling of 1134123144 in words is "one billion, one hundred thirty-four million, one hundred twenty-three thousand, one hundred forty-four".