13865137 has 8 divisors (see below), whose sum is σ = 16289280. Its totient is φ = 11634960.

The previous prime is 13865101. The next prime is 13865147. The reversal of 13865137 is 73156831.

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 13865137 - 2¹⁹ = 13340849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13865147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48337 + ... + 48622.

It is an arithmetic number, because the mean of its divisors is an integer number (2036160).

Almost surely, 2^13865137 is an apocalyptic number.

It is an amenable number.

13865137 is a deficient number, since it is larger than the sum of its proper divisors (2424143).

13865137 is a wasteful number, since it uses less digits than its factorization.

13865137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96983.

The product of its digits is 15120, while the sum is 34.

The square root of 13865137 is about 3723.5919486431. The cubic root of 13865137 is about 240.2378255939.

The spelling of 13865137 in words is "thirteen million, eight hundred sixty-five thousand, one hundred thirty-seven".