1130521543 has 4 divisors (see below), whose sum is σ = 1134820368. Its totient is φ = 1126222720.

The previous prime is 1130521541. The next prime is 1130521559. The reversal of 1130521543 is 3451250311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1130521543 - 2¹ = 1130521541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130521541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149018 + ... + 2149543.

It is an arithmetic number, because the mean of its divisors is an integer number (283705092).

Almost surely, 2^1130521543 is an apocalyptic number.

1130521543 is a deficient number, since it is larger than the sum of its proper divisors (4298825).

1130521543 is an equidigital number, since it uses as much as digits as its factorization.

1130521543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4298824.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1130521543 is about 33623.2292173134. The cubic root of 1130521543 is about 1041.7406571983.

Adding to 1130521543 its reverse (3451250311), we get a palindrome (4581771854).

The spelling of 1130521543 in words is "one billion, one hundred thirty million, five hundred twenty-one thousand, five hundred forty-three".