13749197 has 8 divisors (see below), whose sum is σ = 17141952. Its totient is φ = 10713600.

The previous prime is 13749191. The next prime is 13749233. The reversal of 13749197 is 79194731.

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 13749197 - 2⁶ = 13749133 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 (13749191) 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, 89204 + ... + 89357.

It is an arithmetic number, because the mean of its divisors is an integer number (2142744).

Almost surely, 2^13749197 is an apocalyptic number.

It is an amenable number.

13749197 is a deficient number, since it is larger than the sum of its proper divisors (3392755).

13749197 is a wasteful number, since it uses less digits than its factorization.

13749197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178579.

The product of its digits is 47628, while the sum is 41.

The square root of 13749197 is about 3707.9909654690. The cubic root of 13749197 is about 239.5663291137.

The spelling of 13749197 in words is "thirteen million, seven hundred forty-nine thousand, one hundred ninety-seven".