13342729 has 2 divisors, whose sum is σ = 13342730. Its totient is φ = 13342728.

The previous prime is 13342727. The next prime is 13342733. The reversal of 13342729 is 92724331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13337104 + 5625 = 3652^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 13342729 - 2¹ = 13342727 is a prime.

Together with 13342727, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13342729.

It is not a weakly prime, because it can be changed into another prime (13342727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6671364 + 6671365.

It is an arithmetic number, because the mean of its divisors is an integer number (6671365).

Almost surely, 2^13342729 is an apocalyptic number.

It is an amenable number.

13342729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13342729 is an equidigital number, since it uses as much as digits as its factorization.

13342729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 31.

The square root of 13342729 is about 3652.7700447742. The cubic root of 13342729 is about 237.1819061943.

The spelling of 13342729 in words is "thirteen million, three hundred forty-two thousand, seven hundred twenty-nine".