13240545 has 8 divisors (see below), whose sum is σ = 21184896. Its totient is φ = 7061616.

The previous prime is 13240543. The next prime is 13240553. The reversal of 13240545 is 54504231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13240545 - 2¹ = 13240543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13240541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441337 + ... + 441366.

It is an arithmetic number, because the mean of its divisors is an integer number (2648112).

Almost surely, 2^13240545 is an apocalyptic number.

13240545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13240545 is a deficient number, since it is larger than the sum of its proper divisors (7944351).

13240545 is an equidigital number, since it uses as much as digits as its factorization.

13240545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882711.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 13240545 is about 3638.7559687344. The cubic root of 13240545 is about 236.5748756866.

Adding to 13240545 its reverse (54504231), we get a palindrome (67744776).

The spelling of 13240545 in words is "thirteen million, two hundred forty thousand, five hundred forty-five".