13431197 has 8 divisors (see below), whose sum is σ = 14663544. Its totient is φ = 12227328.

The previous prime is 13431191. The next prime is 13431217. The reversal of 13431197 is 79113431.

It is a happy number.

13431197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 391876 + 13039321 = 626^2 + 3611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13431197 - 2⁴ = 13431181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6128 + ... + 8025.

It is an arithmetic number, because the mean of its divisors is an integer number (1832943).

Almost surely, 2^13431197 is an apocalyptic number.

It is an amenable number.

13431197 is a deficient number, since it is larger than the sum of its proper divisors (1232347).

13431197 is a wasteful number, since it uses less digits than its factorization.

13431197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239.

The product of its digits is 2268, while the sum is 29.

The square root of 13431197 is about 3664.8597517504. The cubic root of 13431197 is about 237.7049577008.

The spelling of 13431197 in words is "thirteen million, four hundred thirty-one thousand, one hundred ninety-seven".