1045043531 has 12 divisors (see below), whose sum is σ = 1216589760. Its totient is φ = 895068720.

The previous prime is 1045043509. The next prime is 1045043537. The reversal of 1045043531 is 1353405401.

1045043531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-1045043531 is a prime.

It is a super-2 number, since 2×1045043531² = 2184231963369895922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045043531.

It is not an unprimeable number, because it can be changed into a prime (1045043537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63101 + ... + 77921.

It is an arithmetic number, because the mean of its divisors is an integer number (101382480).

Almost surely, 2^1045043531 is an apocalyptic number.

1045043531 is a deficient number, since it is larger than the sum of its proper divisors (171546229).

1045043531 is a wasteful number, since it uses less digits than its factorization.

1045043531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16274 (or 16267 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1045043531 is about 32327.1330464055. The cubic root of 1045043531 is about 1014.7945521554.

Adding to 1045043531 its reverse (1353405401), we get a palindrome (2398448932).

The spelling of 1045043531 in words is "one billion, forty-five million, forty-three thousand, five hundred thirty-one".