13555745 has 8 divisors (see below), whose sum is σ = 18590784. Its totient is φ = 9295344.

The previous prime is 13555699. The next prime is 13555747. The reversal of 13555745 is 54755531.

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

It is a cyclic number.

It is not a de Polignac number, because 13555745 - 2⁸ = 13555489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 387307 = 13555745 / (1 + 3 + 5 + 5 + 5 + 7 + 4 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13555747) 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 7 ways as a sum of consecutive naturals, for example, 193619 + ... + 193688.

It is an arithmetic number, because the mean of its divisors is an integer number (2323848).

Almost surely, 2^13555745 is an apocalyptic number.

It is an amenable number.

13555745 is a deficient number, since it is larger than the sum of its proper divisors (5035039).

13555745 is an equidigital number, since it uses as much as digits as its factorization.

13555745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387319.

The product of its digits is 52500, while the sum is 35.

The square root of 13555745 is about 3681.8127328804. The cubic root of 13555745 is about 238.4374472447.

The spelling of 13555745 in words is "thirteen million, five hundred fifty-five thousand, seven hundred forty-five".