13162081 has 2 divisors, whose sum is σ = 13162082. Its totient is φ = 13162080.

The previous prime is 13162069. The next prime is 13162091. The reversal of 13162081 is 18026131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12496225 + 665856 = 3535^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 13162081 - 2¹¹ = 13160033 is a prime.

It is a super-2 number, since 2×13162081² = 346480752501122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13162091) 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, 6581040 + 6581041.

It is an arithmetic number, because the mean of its divisors is an integer number (6581041).

Almost surely, 2^13162081 is an apocalyptic number.

It is an amenable number.

13162081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13162081 is an equidigital number, since it uses as much as digits as its factorization.

13162081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 13162081 is about 3627.9582412150. The cubic root of 13162081 is about 236.1066321252.

The spelling of 13162081 in words is "thirteen million, one hundred sixty-two thousand, eighty-one".