13240245535 has 32 divisors (see below), whose sum is σ = 17718624000. Its totient is φ = 9416943360.

The previous prime is 13240245523. The next prime is 13240245547. The reversal of 13240245535 is 53554204231.

It is an interprime number because it is at equal distance from previous prime (13240245523) and next prime (13240245547).

It is not a de Polignac number, because 13240245535 - 2⁹ = 13240245023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13240245535.

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, 499291 + ... + 525139.

It is an arithmetic number, because the mean of its divisors is an integer number (553707000).

Almost surely, 2^13240245535 is an apocalyptic number.

13240245535 is a deficient number, since it is larger than the sum of its proper divisors (4478378465).

13240245535 is a wasteful number, since it uses less digits than its factorization.

13240245535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26071.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 13240245535 its reverse (53554204231), we get a palindrome (66794449766).

The spelling of 13240245535 in words is "thirteen billion, two hundred forty million, two hundred forty-five thousand, five hundred thirty-five".