1145504043 has 12 divisors (see below), whose sum is σ = 1694974008. Its totient is φ = 745043040.

The previous prime is 1145504039. The next prime is 1145504077. The reversal of 1145504043 is 3404055411.

It is a happy number.

1145504043 is a `hidden beast` number, since 114 + 5 + 504 + 0 + 43 = 666.

It is not a de Polignac number, because 1145504043 - 2² = 1145504039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145503998 and 1145504016.

It is not an unprimeable number, because it can be changed into a prime (1145504023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1551805 + ... + 1552542.

It is an arithmetic number, because the mean of its divisors is an integer number (141247834).

Almost surely, 2^1145504043 is an apocalyptic number.

1145504043 is a deficient number, since it is larger than the sum of its proper divisors (549469965).

1145504043 is a wasteful number, since it uses less digits than its factorization.

1145504043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104394 (or 3104391 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1145504043 is about 33845.2957292443. The cubic root of 1145504043 is about 1046.3224462195.

Adding to 1145504043 its reverse (3404055411), we get a palindrome (4549559454).

The spelling of 1145504043 in words is "one billion, one hundred forty-five million, five hundred four thousand, forty-three".