13534540031 has 4 divisors (see below), whose sum is σ = 13633332432. Its totient is φ = 13435747632.

The previous prime is 13534540013. The next prime is 13534540073. The reversal of 13534540031 is 13004543531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13534540031 is a prime.

It is a super-2 number, since 2×13534540031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13534539976 and 13534540003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13534543031) 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, 49395995 + ... + 49396268.

It is an arithmetic number, because the mean of its divisors is an integer number (3408333108).

Almost surely, 2^13534540031 is an apocalyptic number.

13534540031 is a deficient number, since it is larger than the sum of its proper divisors (98792401).

13534540031 is an equidigital number, since it uses as much as digits as its factorization.

13534540031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98792400.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 13534540031 in words is "thirteen billion, five hundred thirty-four million, five hundred forty thousand, thirty-one".