13401329 has 2 divisors, whose sum is σ = 13401330. Its totient is φ = 13401328.

The previous prime is 13401317. The next prime is 13401343. The reversal of 13401329 is 92310431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12250000 + 1151329 = 3500^2 + 1073^2 .

It is a cyclic number.

It is not a de Polignac number, because 13401329 - 2⁴ = 13401313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13401359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700664 + 6700665.

It is an arithmetic number, because the mean of its divisors is an integer number (6700665).

Almost surely, 2^13401329 is an apocalyptic number.

It is an amenable number.

13401329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13401329 is an equidigital number, since it uses as much as digits as its factorization.

13401329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13401329 is about 3660.7825666106. The cubic root of 13401329 is about 237.5286259125.

The spelling of 13401329 in words is "thirteen million, four hundred one thousand, three hundred twenty-nine".