1043313265 has 16 divisors (see below), whose sum is σ = 1294989696. Its totient is φ = 806371200.

The previous prime is 1043313247. The next prime is 1043313311. The reversal of 1043313265 is 5623133401.

It is a de Polignac number, because none of the positive numbers 2^k-1043313265 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3591 + ... + 45820.

It is an arithmetic number, because the mean of its divisors is an integer number (80936856).

Almost surely, 2^1043313265 is an apocalyptic number.

It is an amenable number.

1043313265 is a deficient number, since it is larger than the sum of its proper divisors (251676431).

1043313265 is a wasteful number, since it uses less digits than its factorization.

1043313265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49560.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1043313265 is about 32300.3601373112. The cubic root of 1043313265 is about 1014.2341817321.

Adding to 1043313265 its reverse (5623133401), we get a palindrome (6666446666).

The spelling of 1043313265 in words is "one billion, forty-three million, three hundred thirteen thousand, two hundred sixty-five".