13187361 has 8 divisors (see below), whose sum is σ = 19181664. Its totient is φ = 7992320.

The previous prime is 13187353. The next prime is 13187381. The reversal of 13187361 is 16378131.

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 13187361 - 2³ = 13187353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13187341) 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, 199776 + ... + 199841.

It is an arithmetic number, because the mean of its divisors is an integer number (2397708).

Almost surely, 2^13187361 is an apocalyptic number.

13187361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13187361 is a deficient number, since it is larger than the sum of its proper divisors (5994303).

13187361 is a wasteful number, since it uses less digits than its factorization.

13187361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399631.

The product of its digits is 3024, while the sum is 30.

The square root of 13187361 is about 3631.4406232238. The cubic root of 13187361 is about 236.2576963423.

The spelling of 13187361 in words is "thirteen million, one hundred eighty-seven thousand, three hundred sixty-one".