13554649 has 2 divisors, whose sum is σ = 13554650. Its totient is φ = 13554648.

The previous prime is 13554637. The next prime is 13554677. The reversal of 13554649 is 94645531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7601049 + 5953600 = 2757^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 13554649 - 2⁹ = 13554137 is a prime.

It is not a weakly prime, because it can be changed into another prime (13554349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777324 + 6777325.

It is an arithmetic number, because the mean of its divisors is an integer number (6777325).

Almost surely, 2^13554649 is an apocalyptic number.

It is an amenable number.

13554649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13554649 is an equidigital number, since it uses as much as digits as its factorization.

13554649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 13554649 is about 3681.6638901453. The cubic root of 13554649 is about 238.4310210767.

The spelling of 13554649 in words is "thirteen million, five hundred fifty-four thousand, six hundred forty-nine".