13171899 has 8 divisors (see below), whose sum is σ = 18913552. Its totient is φ = 8105760.

The previous prime is 13171877. The next prime is 13171903. The reversal of 13171899 is 99817131.

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

It is not a de Polignac number, because 13171899 - 2¹¹ = 13169851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 337741 = 13171899 / (1 + 3 + 1 + 7 + 1 + 8 + 9 + 9).

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (13171819) 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, 168832 + ... + 168909.

It is an arithmetic number, because the mean of its divisors is an integer number (2364194).

Almost surely, 2^13171899 is an apocalyptic number.

13171899 is a deficient number, since it is larger than the sum of its proper divisors (5741653).

13171899 is a wasteful number, since it uses less digits than its factorization.

13171899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337757.

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

The square root of 13171899 is about 3629.3110916536. The cubic root of 13171899 is about 236.1653239277.

The spelling of 13171899 in words is "thirteen million, one hundred seventy-one thousand, eight hundred ninety-nine".