13851349 has 2 divisors, whose sum is σ = 13851350. Its totient is φ = 13851348.

The previous prime is 13851347. The next prime is 13851353. The reversal of 13851349 is 94315831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 4761124 = 3015^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 13851349 - 2¹ = 13851347 is a prime.

Together with 13851347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13851347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6925674 + 6925675.

It is an arithmetic number, because the mean of its divisors is an integer number (6925675).

Almost surely, 2^13851349 is an apocalyptic number.

It is an amenable number.

13851349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13851349 is an equidigital number, since it uses as much as digits as its factorization.

13851349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 13851349 is about 3721.7400500304. The cubic root of 13851349 is about 240.1581654184.

The spelling of 13851349 in words is "thirteen million, eight hundred fifty-one thousand, three hundred forty-nine".