13345745 has 16 divisors (see below), whose sum is σ = 18496128. Its totient is φ = 9054720.

The previous prime is 13345723. The next prime is 13345747. The reversal of 13345745 is 54754331.

It is not a de Polignac number, because 13345745 - 2¹⁶ = 13280209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13345747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1430 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (1156008).

Almost surely, 2^13345745 is an apocalyptic number.

It is an amenable number.

13345745 is a deficient number, since it is larger than the sum of its proper divisors (5150383).

13345745 is an equidigital number, since it uses as much as digits as its factorization.

13345745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040.

The product of its digits is 25200, while the sum is 32.

The square root of 13345745 is about 3653.1828588232. The cubic root of 13345745 is about 237.1997757705.

The spelling of 13345745 in words is "thirteen million, three hundred forty-five thousand, seven hundred forty-five".