13747361 has 4 divisors (see below), whose sum is σ = 13755924. Its totient is φ = 13738800.

The previous prime is 13747333. The next prime is 13747381. The reversal of 13747361 is 16374731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16374731 = 349 ⋅46919.

It can be written as a sum of positive squares in 2 ways, for example, as 9150625 + 4596736 = 3025^2 + 2144^2 .

It is a cyclic number.

It is not a de Polignac number, because 13747361 - 2⁶ = 13747297 is a prime.

It is a deceptive number, since it divides R_13747360.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13747381) 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, 1070 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (3438981).

It is a Poulet number, since it divides 2^13747360-1.

Almost surely, 2^13747361 is an apocalyptic number.

13747361 is the 2141-st octagonal number.

It is an amenable number.

13747361 is a deficient number, since it is larger than the sum of its proper divisors (8563).

13747361 is an equidigital number, since it uses as much as digits as its factorization.

13747361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562.

The product of its digits is 10584, while the sum is 32.

The square root of 13747361 is about 3707.7433837848. The cubic root of 13747361 is about 239.5556651367. Note that the first 3 decimals are identical.

The spelling of 13747361 in words is "thirteen million, seven hundred forty-seven thousand, three hundred sixty-one".