13265642145 has 32 divisors (see below), whose sum is σ = 24380345088. Its totient is φ = 6033500928.

The previous prime is 13265642141. The next prime is 13265642149. The reversal of 13265642145 is 54124656231.

It is an interprime number because it is at equal distance from previous prime (13265642141) and next prime (13265642149).

It is not a de Polignac number, because 13265642145 - 2² = 13265642141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13265642141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299974 + ... + 341343.

It is an arithmetic number, because the mean of its divisors is an integer number (761885784).

Almost surely, 2^13265642145 is an apocalyptic number.

13265642145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13265642145 is a deficient number, since it is larger than the sum of its proper divisors (11114702943).

13265642145 is a wasteful number, since it uses less digits than its factorization.

13265642145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641529.

The product of its digits is 172800, while the sum is 39.

The spelling of 13265642145 in words is "thirteen billion, two hundred sixty-five million, six hundred forty-two thousand, one hundred forty-five".