13755389 has 2 divisors, whose sum is σ = 13755390. Its totient is φ = 13755388.

The previous prime is 13755383. The next prime is 13755419. The reversal of 13755389 is 98355731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8602489 + 5152900 = 2933^2 + 2270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13755389 is a prime.

It is a super-4 number, since 4×13755389⁴ (a number of 30 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13755383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6877694 + 6877695.

It is an arithmetic number, because the mean of its divisors is an integer number (6877695).

Almost surely, 2^13755389 is an apocalyptic number.

It is an amenable number.

13755389 is a deficient number, since it is larger than the sum of its proper divisors (1).

13755389 is an equidigital number, since it uses as much as digits as its factorization.

13755389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 13755389 is about 3708.8258249748. The cubic root of 13755389 is about 239.6022869004.

The spelling of 13755389 in words is "thirteen million, seven hundred fifty-five thousand, three hundred eighty-nine".