13201649 has 2 divisors, whose sum is σ = 13201650. Its totient is φ = 13201648.

The previous prime is 13201633. The next prime is 13201651. The reversal of 13201649 is 94610231.

13201649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8958049 + 4243600 = 2993^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 13201649 - 2⁴ = 13201633 is a prime.

Together with 13201651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13201679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600824 + 6600825.

It is an arithmetic number, because the mean of its divisors is an integer number (6600825).

Almost surely, 2^13201649 is an apocalyptic number.

It is an amenable number.

13201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201649 is an equidigital number, since it uses as much as digits as its factorization.

13201649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 13201649 is about 3633.4073539861. The cubic root of 13201649 is about 236.3429909303.

The spelling of 13201649 in words is "thirteen million, two hundred one thousand, six hundred forty-nine".