13273081 has 2 divisors, whose sum is σ = 13273082. Its totient is φ = 13273080.

The previous prime is 13273067. The next prime is 13273087. The reversal of 13273081 is 18037231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7513081 + 5760000 = 2741^2 + 2400^2 .

It is an emirp because it is prime and its reverse (18037231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13273081 - 2⁵ = 13273049 is a prime.

It is a super-2 number, since 2×13273081² = 352349358465122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13273087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6636540 + 6636541.

It is an arithmetic number, because the mean of its divisors is an integer number (6636541).

Almost surely, 2^13273081 is an apocalyptic number.

It is an amenable number.

13273081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13273081 is an equidigital number, since it uses as much as digits as its factorization.

13273081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13273081 is about 3643.2239843304. The cubic root of 13273081 is about 236.7684957118.

The spelling of 13273081 in words is "thirteen million, two hundred seventy-three thousand, eighty-one".