13996537 has 2 divisors, whose sum is σ = 13996538. Its totient is φ = 13996536.

The previous prime is 13996529. The next prime is 13996561. The reversal of 13996537 is 73569931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13920361 + 76176 = 3731^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 13996537 - 2³ = 13996529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13996493 and 13996502.

It is not a weakly prime, because it can be changed into another prime (13996517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6998268 + 6998269.

It is an arithmetic number, because the mean of its divisors is an integer number (6998269).

Almost surely, 2^13996537 is an apocalyptic number.

It is an amenable number.

13996537 is a deficient number, since it is larger than the sum of its proper divisors (1).

13996537 is an equidigital number, since it uses as much as digits as its factorization.

13996537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 43.

The square root of 13996537 is about 3741.1945953131. The cubic root of 13996537 is about 240.9943525820.

The spelling of 13996537 in words is "thirteen million, nine hundred ninety-six thousand, five hundred thirty-seven".