13746505 has 4 divisors (see below), whose sum is σ = 16495812. Its totient is φ = 10997200.

The previous prime is 13746503. The next prime is 13746581. The reversal of 13746505 is 50564731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50564731 = 7 ⋅7223533.

It can be written as a sum of positive squares in 2 ways, for example, as 3640464 + 10106041 = 1908^2 + 3179^2 .

It is not a de Polignac number, because 13746505 - 2¹ = 13746503 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13746503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374646 + ... + 1374655.

It is an arithmetic number, because the mean of its divisors is an integer number (4123953).

Almost surely, 2^13746505 is an apocalyptic number.

It is an amenable number.

13746505 is a deficient number, since it is larger than the sum of its proper divisors (2749307).

13746505 is an equidigital number, since it uses as much as digits as its factorization.

13746505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749306.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 13746505 is about 3707.6279478934. The cubic root of 13746505 is about 239.5506929362.

The spelling of 13746505 in words is "thirteen million, seven hundred forty-six thousand, five hundred five".