13573081 has 2 divisors, whose sum is σ = 13573082. Its totient is φ = 13573080.

The previous prime is 13573067. The next prime is 13573099. The reversal of 13573081 is 18037531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13571856 + 1225 = 3684^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 13573081 - 2⁹ = 13572569 is a prime.

It is a super-2 number, since 2×13573081² = 368457055665122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13573981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6786540 + 6786541.

It is an arithmetic number, because the mean of its divisors is an integer number (6786541).

Almost surely, 2^13573081 is an apocalyptic number.

It is an amenable number.

13573081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13573081 is an equidigital number, since it uses as much as digits as its factorization.

13573081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13573081 is about 3684.1662557491. The cubic root of 13573081 is about 238.5390472366.

The spelling of 13573081 in words is "thirteen million, five hundred seventy-three thousand, eighty-one".