13981197 has 8 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 9310400.

The previous prime is 13981193. The next prime is 13981199. The reversal of 13981197 is 79118931.

13981197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13981197 - 2² = 13981193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13981193) 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, 1429 + ... + 5477.

It is an arithmetic number, because the mean of its divisors is an integer number (2332800).

Almost surely, 2^13981197 is an apocalyptic number.

It is an amenable number.

13981197 is a deficient number, since it is larger than the sum of its proper divisors (4681203).

13981197 is a wasteful number, since it uses less digits than its factorization.

13981197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its digits is 13608, while the sum is 39.

The square root of 13981197 is about 3739.1438859718. The cubic root of 13981197 is about 240.9062783020.

The spelling of 13981197 in words is "thirteen million, nine hundred eighty-one thousand, one hundred ninety-seven".