13774745 has 4 divisors (see below), whose sum is σ = 16529700. Its totient is φ = 11019792.

The previous prime is 13774741. The next prime is 13774759. The reversal of 13774745 is 54747731.

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 2778889 + 10995856 = 1667^2 + 3316^2 .

It is a cyclic number.

It is not a de Polignac number, because 13774745 - 2² = 13774741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13774699 and 13774708.

It is not an unprimeable number, because it can be changed into a prime (13774741) 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 3 ways as a sum of consecutive naturals, for example, 1377470 + ... + 1377479.

It is an arithmetic number, because the mean of its divisors is an integer number (4132425).

Almost surely, 2^13774745 is an apocalyptic number.

It is an amenable number.

13774745 is a deficient number, since it is larger than the sum of its proper divisors (2754955).

13774745 is an equidigital number, since it uses as much as digits as its factorization.

13774745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754954.

The product of its digits is 82320, while the sum is 38.

The square root of 13774745 is about 3711.4343588430. The cubic root of 13774745 is about 239.7146202853.

The spelling of 13774745 in words is "thirteen million, seven hundred seventy-four thousand, seven hundred forty-five".