13350581 has 2 divisors, whose sum is σ = 13350582. Its totient is φ = 13350580.

The previous prime is 13350529. The next prime is 13350607. The reversal of 13350581 is 18505331.

It is an a-pointer prime, because the next prime (13350607) can be obtained adding 13350581 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 2235025 = 3334^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 13350581 - 2⁶ = 13350517 is a prime.

It is a super-2 number, since 2×13350581² = 356476026075122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13350581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13350881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6675290 + 6675291.

It is an arithmetic number, because the mean of its divisors is an integer number (6675291).

Almost surely, 2^13350581 is an apocalyptic number.

It is an amenable number.

13350581 is a deficient number, since it is larger than the sum of its proper divisors (1).

13350581 is an equidigital number, since it uses as much as digits as its factorization.

13350581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 13350581 is about 3653.8446874491. The cubic root of 13350581 is about 237.2284230931.

It can be divided in two parts, 13350 and 581, that added together give a palindrome (13931).

The spelling of 13350581 in words is "thirteen million, three hundred fifty thousand, five hundred eighty-one".