13598137 has 6 divisors (see below), whose sum is σ = 15818298. Its totient is φ = 11655504.

The previous prime is 13598131. The next prime is 13598149. The reversal of 13598137 is 73189531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6817321 + 6780816 = 2611^2 + 2604^2 .

It is not a de Polignac number, because 13598137 - 2⁷ = 13598009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13598096 and 13598105.

It is not an unprimeable number, because it can be changed into a prime (13598131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138708 + ... + 138805.

It is an arithmetic number, because the mean of its divisors is an integer number (2636383).

Almost surely, 2^13598137 is an apocalyptic number.

It is an amenable number.

13598137 is a deficient number, since it is larger than the sum of its proper divisors (2220161).

13598137 is an equidigital number, since it uses as much as digits as its factorization.

13598137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277527 (or 277520 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 13598137 is about 3687.5651858645. The cubic root of 13598137 is about 238.6857385780.

The spelling of 13598137 in words is "thirteen million, five hundred ninety-eight thousand, one hundred thirty-seven".