1043045513 has 4 divisors (see below), whose sum is σ = 1043695380. Its totient is φ = 1042395648.

The previous prime is 1043045501. The next prime is 1043045519. The reversal of 1043045513 is 3155403401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 990801529 + 52243984 = 31477^2 + 7228^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043045513 - 2¹⁸ = 1042783369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1043045519) 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, 322520 + ... + 325737.

It is an arithmetic number, because the mean of its divisors is an integer number (260923845).

Almost surely, 2^1043045513 is an apocalyptic number.

It is an amenable number.

1043045513 is a deficient number, since it is larger than the sum of its proper divisors (649867).

1043045513 is an equidigital number, since it uses as much as digits as its factorization.

1043045513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649866.

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

The square root of 1043045513 is about 32296.2151497664. The cubic root of 1043045513 is about 1014.1474112244.

Adding to 1043045513 its reverse (3155403401), we get a palindrome (4198448914).

The spelling of 1043045513 in words is "one billion, forty-three million, forty-five thousand, five hundred thirteen".