13342649 has 2 divisors, whose sum is σ = 13342650. Its totient is φ = 13342648.

The previous prime is 13342643. The next prime is 13342661. The reversal of 13342649 is 94624331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 1488400 = 3443^2 + 1220^2 .

It is an emirp because it is prime and its reverse (94624331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13342649 - 2⁸ = 13342393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13342643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6671324 + 6671325.

It is an arithmetic number, because the mean of its divisors is an integer number (6671325).

Almost surely, 2^13342649 is an apocalyptic number.

It is an amenable number.

13342649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13342649 is an equidigital number, since it uses as much as digits as its factorization.

13342649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 13342649 is about 3652.7590941643. The cubic root of 13342649 is about 237.1814321636.

The spelling of 13342649 in words is "thirteen million, three hundred forty-two thousand, six hundred forty-nine".