13046981 has 2 divisors, whose sum is σ = 13046982. Its totient is φ = 13046980.

The previous prime is 13046963. The next prime is 13046983. The reversal of 13046981 is 18964031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12716356 + 330625 = 3566^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13046981 is a prime.

It is a super-2 number, since 2×13046981² = 340447426428722, which contains 22 as substring.

Together with 13046983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13046983) 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 as a sum of consecutive naturals, namely, 6523490 + 6523491.

It is an arithmetic number, because the mean of its divisors is an integer number (6523491).

Almost surely, 2^13046981 is an apocalyptic number.

It is an amenable number.

13046981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13046981 is an equidigital number, since it uses as much as digits as its factorization.

13046981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13046981 is about 3612.0604922952. The cubic root of 13046981 is about 235.4163796622.

The spelling of 13046981 in words is "thirteen million, forty-six thousand, nine hundred eighty-one".