13454312565 has 32 divisors (see below), whose sum is σ = 22066482816. Its totient is φ = 6996003840.

The previous prime is 13454312537. The next prime is 13454312581. The reversal of 13454312565 is 56521345431.

It is a happy number.

It is not a de Polignac number, because 13454312565 - 2⁷ = 13454312437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1053297 + ... + 1065993.

It is an arithmetic number, because the mean of its divisors is an integer number (689577588).

Almost surely, 2^13454312565 is an apocalyptic number.

13454312565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13454312565 is a deficient number, since it is larger than the sum of its proper divisors (8612170251).

13454312565 is a wasteful number, since it uses less digits than its factorization.

13454312565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14469.

The product of its digits is 216000, while the sum is 39.

Adding to 13454312565 its reverse (56521345431), we get a palindrome (69975657996).

The spelling of 13454312565 in words is "thirteen billion, four hundred fifty-four million, three hundred twelve thousand, five hundred sixty-five".