13137861 has 8 divisors (see below), whose sum is σ = 19109664. Its totient is φ = 7962320.

The previous prime is 13137851. The next prime is 13137869. The reversal of 13137861 is 16873131.

13137861 is digitally balanced in base 3, 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 13137861 - 2⁹ = 13137349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13137869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199026 + ... + 199091.

It is an arithmetic number, because the mean of its divisors is an integer number (2388708).

Almost surely, 2^13137861 is an apocalyptic number.

13137861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13137861 is a deficient number, since it is larger than the sum of its proper divisors (5971803).

13137861 is a wasteful number, since it uses less digits than its factorization.

13137861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398131.

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

The square root of 13137861 is about 3624.6187385710. The cubic root of 13137861 is about 235.9617205461.

The spelling of 13137861 in words is "thirteen million, one hundred thirty-seven thousand, eight hundred sixty-one".