1313043465 has 32 divisors (see below), whose sum is σ = 2186113536. Its totient is φ = 672439040.

The previous prime is 1313043439. The next prime is 1313043497. The reversal of 1313043465 is 5643403131.

It is not a de Polignac number, because 1313043465 - 2⁷ = 1313043337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19795 + ... + 54935.

It is an arithmetic number, because the mean of its divisors is an integer number (68316048).

Almost surely, 2^1313043465 is an apocalyptic number.

1313043465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313043465 is a deficient number, since it is larger than the sum of its proper divisors (873070071).

1313043465 is a wasteful number, since it uses less digits than its factorization.

1313043465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35249.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1313043465 is about 36235.9416187851. The cubic root of 1313043465 is about 1095.0308825551.

Adding to 1313043465 its reverse (5643403131), we get a palindrome (6956446596).

The spelling of 1313043465 in words is "one billion, three hundred thirteen million, forty-three thousand, four hundred sixty-five".