13785361 has 2 divisors, whose sum is σ = 13785362. Its totient is φ = 13785360.

The previous prime is 13785347. The next prime is 13785371. The reversal of 13785361 is 16358731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9884736 + 3900625 = 3144^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 13785361 - 2¹⁵ = 13752593 is a prime.

It is not a weakly prime, because it can be changed into another prime (13785301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6892680 + 6892681.

It is an arithmetic number, because the mean of its divisors is an integer number (6892681).

Almost surely, 2^13785361 is an apocalyptic number.

It is an amenable number.

13785361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13785361 is an equidigital number, since it uses as much as digits as its factorization.

13785361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 13785361 is about 3712.8642582244. The cubic root of 13785361 is about 239.7761860212.

The spelling of 13785361 in words is "thirteen million, seven hundred eighty-five thousand, three hundred sixty-one".