13165403 has 2 divisors, whose sum is σ = 13165404. Its totient is φ = 13165402.

The previous prime is 13165393. The next prime is 13165417. The reversal of 13165403 is 30456131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13165403 - 2¹⁰ = 13164379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13165003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582701 + 6582702.

It is an arithmetic number, because the mean of its divisors is an integer number (6582702).

Almost surely, 2^13165403 is an apocalyptic number.

13165403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13165403 is an equidigital number, since it uses as much as digits as its factorization.

13165403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13165403 is about 3628.4160456045. The cubic root of 13165403 is about 236.1264942391.

The spelling of 13165403 in words is "thirteen million, one hundred sixty-five thousand, four hundred three".