13197547 has 4 divisors (see below), whose sum is σ = 14397336. Its totient is φ = 11997760.

The previous prime is 13197539. The next prime is 13197557. The reversal of 13197547 is 74579131.

13197547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74579131 = 11 ⋅6779921.

It is a cyclic number.

It is not a de Polignac number, because 13197547 - 2³ = 13197539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13197557) 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, 599878 + ... + 599899.

It is an arithmetic number, because the mean of its divisors is an integer number (3599334).

Almost surely, 2^13197547 is an apocalyptic number.

13197547 is a deficient number, since it is larger than the sum of its proper divisors (1199789).

13197547 is a wasteful number, since it uses less digits than its factorization.

13197547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199788.

The product of its digits is 26460, while the sum is 37.

The square root of 13197547 is about 3632.8428262175. The cubic root of 13197547 is about 236.3185096609.

The spelling of 13197547 in words is "thirteen million, one hundred ninety-seven thousand, five hundred forty-seven".