1144255134 has 48 divisors (see below), whose sum is σ = 2519732880. Its totient is φ = 346156800.

The previous prime is 1144255103. The next prime is 1144255139. The reversal of 1144255134 is 4315524411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144255139) 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, 638712 + ... + 640500.

It is an arithmetic number, because the mean of its divisors is an integer number (52494435).

Almost surely, 2^1144255134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144255134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259866440).

1144255134 is an abundant number, since it is smaller than the sum of its proper divisors (1375477746).

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

1144255134 is a wasteful number, since it uses less digits than its factorization.

1144255134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2686 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 1144255134 is about 33826.8404377352. The cubic root of 1144255134 is about 1045.9420498564.

Adding to 1144255134 its reverse (4315524411), we get a palindrome (5459779545).

The spelling of 1144255134 in words is "one billion, one hundred forty-four million, two hundred fifty-five thousand, one hundred thirty-four".