1144542516 has 48 divisors (see below), whose sum is σ = 2893317504. Its totient is φ = 350050176.

The previous prime is 1144542467. The next prime is 1144542547. The reversal of 1144542516 is 6152454411.

It is a super-2 number, since 2×1144542516² = 2619955141863220512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4086 + ... + 48018.

It is an arithmetic number, because the mean of its divisors is an integer number (60277448).

Almost surely, 2^1144542516 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 1144542516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446658752).

1144542516 is an abundant number, since it is smaller than the sum of its proper divisors (1748774988).

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

1144542516 is a wasteful number, since it uses less digits than its factorization.

1144542516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44120 (or 44118 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 1144542516 is about 33831.0880108814. The cubic root of 1144542516 is about 1046.0296060166.

Adding to 1144542516 its reverse (6152454411), we get a palindrome (7296996927).

The spelling of 1144542516 in words is "one billion, one hundred forty-four million, five hundred forty-two thousand, five hundred sixteen".