13481081 has 2 divisors, whose sum is σ = 13481082. Its totient is φ = 13481080.

The previous prime is 13481077. The next prime is 13481099. The reversal of 13481081 is 18018431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 4239481 = 3040^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 13481081 - 2² = 13481077 is a prime.

It is a super-2 number, since 2×13481081² = 363479089857122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13481081.

It is not a weakly prime, because it can be changed into another prime (13481021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6740540 + 6740541.

It is an arithmetic number, because the mean of its divisors is an integer number (6740541).

Almost surely, 2^13481081 is an apocalyptic number.

It is an amenable number.

13481081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13481081 is an equidigital number, since it uses as much as digits as its factorization.

13481081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 13481081 is about 3671.6591617415. The cubic root of 13481081 is about 237.9988760157.

The spelling of 13481081 in words is "thirteen million, four hundred eighty-one thousand, eighty-one".