13774145 has 48 divisors (see below), whose sum is σ = 22161600. Its totient is φ = 8104320.

The previous prime is 13774141. The next prime is 13774153. The reversal of 13774145 is 54147731.

It is not a de Polignac number, because 13774145 - 2² = 13774141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13774141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51071 + ... + 51339.

It is an arithmetic number, because the mean of its divisors is an integer number (461700).

Almost surely, 2^13774145 is an apocalyptic number.

It is an amenable number.

13774145 is a deficient number, since it is larger than the sum of its proper divisors (8387455).

13774145 is a wasteful number, since it uses less digits than its factorization.

13774145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 311 counting only the distinct ones).

The product of its digits is 11760, while the sum is 32.

The square root of 13774145 is about 3711.3535266800. The cubic root of 13774145 is about 239.7111397403.

The spelling of 13774145 in words is "thirteen million, seven hundred seventy-four thousand, one hundred forty-five".