13175681 has 2 divisors, whose sum is σ = 13175682. Its totient is φ = 13175680.

The previous prime is 13175633. The next prime is 13175693. The reversal of 13175681 is 18657131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12845056 + 330625 = 3584^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 13175681 - 2¹⁴ = 13159297 is a prime.

It is a super-2 number, since 2×13175681² = 347197139627522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13175621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6587840 + 6587841.

It is an arithmetic number, because the mean of its divisors is an integer number (6587841).

Almost surely, 2^13175681 is an apocalyptic number.

It is an amenable number.

13175681 is a deficient number, since it is larger than the sum of its proper divisors (1).

13175681 is an equidigital number, since it uses as much as digits as its factorization.

13175681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 13175681 is about 3629.8320897805. The cubic root of 13175681 is about 236.1879248648.

The spelling of 13175681 in words is "thirteen million, one hundred seventy-five thousand, six hundred eighty-one".