13947553 has 2 divisors, whose sum is σ = 13947554. Its totient is φ = 13947552.

The previous prime is 13947547. The next prime is 13947587. The reversal of 13947553 is 35574931.

13947553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13417569 + 529984 = 3663^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 13947553 - 2¹³ = 13939361 is a prime.

It is not a weakly prime, because it can be changed into another prime (13942553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973776 + 6973777.

It is an arithmetic number, because the mean of its divisors is an integer number (6973777).

Almost surely, 2^13947553 is an apocalyptic number.

It is an amenable number.

13947553 is a deficient number, since it is larger than the sum of its proper divisors (1).

13947553 is an equidigital number, since it uses as much as digits as its factorization.

13947553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 13947553 is about 3734.6422854137. The cubic root of 13947553 is about 240.7128861626.

The spelling of 13947553 in words is "thirteen million, nine hundred forty-seven thousand, five hundred fifty-three".