13531143197 has 16 divisors (see below), whose sum is σ = 15902577600. Its totient is φ = 11350627200.

The previous prime is 13531143181. The next prime is 13531143209. The reversal of 13531143197 is 79134113531.

It is not a de Polignac number, because 13531143197 - 2⁴ = 13531143181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13531143197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531143167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408929 + ... + 440777.

It is an arithmetic number, because the mean of its divisors is an integer number (993911100).

Almost surely, 2^13531143197 is an apocalyptic number.

It is an amenable number.

13531143197 is a deficient number, since it is larger than the sum of its proper divisors (2371434403).

13531143197 is a wasteful number, since it uses less digits than its factorization.

13531143197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34844.

The product of its digits is 34020, while the sum is 38.

The spelling of 13531143197 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-three thousand, one hundred ninety-seven".