13815343 has 2 divisors, whose sum is σ = 13815344. Its totient is φ = 13815342.

The previous prime is 13815331. The next prime is 13815359. The reversal of 13815343 is 34351831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13815343 - 2⁵ = 13815311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13815383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6907671 + 6907672.

It is an arithmetic number, because the mean of its divisors is an integer number (6907672).

Almost surely, 2^13815343 is an apocalyptic number.

13815343 is a deficient number, since it is larger than the sum of its proper divisors (1).

13815343 is an equidigital number, since it uses as much as digits as its factorization.

13815343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 13815343 is about 3716.8996489009. The cubic root of 13815343 is about 239.9498911590.

It can be divided in two parts, 1381 and 5343, that added together give a square (6724 = 82²).

The spelling of 13815343 in words is "thirteen million, eight hundred fifteen thousand, three hundred forty-three".