13535440531 has 4 divisors (see below), whose sum is σ = 13536780712. Its totient is φ = 13534100352.

The previous prime is 13535440519. The next prime is 13535440621. The reversal of 13535440531 is 13504453531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13535440531 - 2²¹ = 13533343379 is a prime.

It is a super-2 number, since 2×13535440531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13535440231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654825 + ... + 675178.

It is an arithmetic number, because the mean of its divisors is an integer number (3384195178).

Almost surely, 2^13535440531 is an apocalyptic number.

13535440531 is a deficient number, since it is larger than the sum of its proper divisors (1340181).

13535440531 is a wasteful number, since it uses less digits than its factorization.

13535440531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340180.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 13535440531 in words is "thirteen billion, five hundred thirty-five million, four hundred forty thousand, five hundred thirty-one".