13457197 has 8 divisors (see below), whose sum is σ = 14545944. Its totient is φ = 12376128.

The previous prime is 13457173. The next prime is 13457201. The reversal of 13457197 is 79175431.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 8590761 = 2206^2 + 2931^2 .

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 13457197 - 2¹¹ = 13455149 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 (13457137) 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, 2043 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (1818243).

Almost surely, 2^13457197 is an apocalyptic number.

It is an amenable number.

13457197 is a deficient number, since it is larger than the sum of its proper divisors (1088747).

13457197 is a wasteful number, since it uses less digits than its factorization.

13457197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3839.

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

The square root of 13457197 is about 3668.4052393377. The cubic root of 13457197 is about 237.8582412649.

The spelling of 13457197 in words is "thirteen million, four hundred fifty-seven thousand, one hundred ninety-seven".