1144554543 has 48 divisors (see below), whose sum is σ = 1951762176. Its totient is φ = 663474240.

The previous prime is 1144554539. The next prime is 1144554583. The reversal of 1144554543 is 3454554411.

1144554543 is a `hidden beast` number, since 11 + 44 + 554 + 54 + 3 = 666.

It is not a de Polignac number, because 1144554543 - 2² = 1144554539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144554498 and 1144554507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144554583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52171 + ... + 70787.

It is an arithmetic number, because the mean of its divisors is an integer number (40661712).

Almost surely, 2^1144554543 is an apocalyptic number.

1144554543 is a deficient number, since it is larger than the sum of its proper divisors (807207633).

1144554543 is a wasteful number, since it uses less digits than its factorization.

1144554543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18666 (or 18654 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 1144554543 is about 33831.2657611269. The cubic root of 1144554543 is about 1046.0332699417.

The spelling of 1144554543 in words is "one billion, one hundred forty-four million, five hundred fifty-four thousand, five hundred forty-three".