13837081 has 4 divisors (see below), whose sum is σ = 14098212. Its totient is φ = 13575952.

The previous prime is 13837079. The next prime is 13837121. The reversal of 13837081 is 18073831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11560000 + 2277081 = 3400^2 + 1509^2 .

It is a cyclic number.

It is not a de Polignac number, because 13837081 - 2¹ = 13837079 is a prime.

It is a super-2 number, since 2×13837081² = 382929621201122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13837781) 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 3 ways as a sum of consecutive naturals, for example, 130486 + ... + 130591.

It is an arithmetic number, because the mean of its divisors is an integer number (3524553).

Almost surely, 2^13837081 is an apocalyptic number.

It is an amenable number.

13837081 is a deficient number, since it is larger than the sum of its proper divisors (261131).

13837081 is an equidigital number, since it uses as much as digits as its factorization.

13837081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261130.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 13837081 is about 3719.8227108291. The cubic root of 13837081 is about 240.0756763668.

It can be divided in two parts, 1383 and 7081, that added together give a square (8464 = 92²).

The spelling of 13837081 in words is "thirteen million, eight hundred thirty-seven thousand, eighty-one".