13540361 has 4 divisors (see below), whose sum is σ = 14007300. Its totient is φ = 13073424.

The previous prime is 13540333. The next prime is 13540367. The reversal of 13540361 is 16304531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10368400 + 3171961 = 3220^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 13540361 - 2⁶ = 13540297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13540367) 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 in 3 ways as a sum of consecutive naturals, for example, 233426 + ... + 233483.

It is an arithmetic number, because the mean of its divisors is an integer number (3501825).

Almost surely, 2^13540361 is an apocalyptic number.

It is an amenable number.

13540361 is a deficient number, since it is larger than the sum of its proper divisors (466939).

13540361 is an equidigital number, since it uses as much as digits as its factorization.

13540361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466938.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13540361 is about 3679.7229515277. The cubic root of 13540361 is about 238.3472146489.

Adding to 13540361 its reverse (16304531), we get a palindrome (29844892).

The spelling of 13540361 in words is "thirteen million, five hundred forty thousand, three hundred sixty-one".