1140512544 has 144 divisors (see below), whose sum is σ = 3431544480. Its totient is φ = 358318080.

The previous prime is 1140512519. The next prime is 1140512561. The reversal of 1140512544 is 4452150411.

1140512544 is a `hidden beast` number, since 1 + 1 + 405 + 1 + 254 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405899 + ... + 1406709.

It is an arithmetic number, because the mean of its divisors is an integer number (23830170).

Almost surely, 2^1140512544 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 1140512544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1715772240).

1140512544 is an abundant number, since it is smaller than the sum of its proper divisors (2291031936).

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

1140512544 is a wasteful number, since it uses less digits than its factorization.

1140512544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1140512544 is about 33771.4753009104. The cubic root of 1140512544 is about 1044.8004606686.

Adding to 1140512544 its reverse (4452150411), we get a palindrome (5592662955).

The spelling of 1140512544 in words is "one billion, one hundred forty million, five hundred twelve thousand, five hundred forty-four".