13394537 has 4 divisors (see below), whose sum is σ = 14424900. Its totient is φ = 12364176.

The previous prime is 13394527. The next prime is 13394561. The reversal of 13394537 is 73549331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73549331 = 23 ⋅3197797.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 9634816 = 1939^2 + 3104^2 .

It is a cyclic number.

It is not a de Polignac number, because 13394537 - 2⁶ = 13394473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13394497 and 13394506.

It is not an unprimeable number, because it can be changed into a prime (13394527) 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, 515162 + ... + 515187.

It is an arithmetic number, because the mean of its divisors is an integer number (3606225).

Almost surely, 2^13394537 is an apocalyptic number.

It is an amenable number.

13394537 is a deficient number, since it is larger than the sum of its proper divisors (1030363).

13394537 is a wasteful number, since it uses less digits than its factorization.

13394537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030362.

The product of its digits is 34020, while the sum is 35.

The square root of 13394537 is about 3659.8547785397. The cubic root of 13394537 is about 237.4884914091.

It can be divided in two parts, 13394 and 537, that added together give a palindrome (13931).

The spelling of 13394537 in words is "thirteen million, three hundred ninety-four thousand, five hundred thirty-seven".