13201887 has 4 divisors (see below), whose sum is σ = 17602520. Its totient is φ = 8801256.

The previous prime is 13201883. The next prime is 13201889. The reversal of 13201887 is 78810231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13201887 - 2² = 13201883 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 (13201883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200312 + ... + 2200317.

It is an arithmetic number, because the mean of its divisors is an integer number (4400630).

Almost surely, 2^13201887 is an apocalyptic number.

13201887 is a deficient number, since it is larger than the sum of its proper divisors (4400633).

13201887 is an equidigital number, since it uses as much as digits as its factorization.

13201887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400632.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 13201887 is about 3633.4401054648. The cubic root of 13201887 is about 236.3444111896.

The spelling of 13201887 in words is "thirteen million, two hundred one thousand, eight hundred eighty-seven".