13548109 has 2 divisors, whose sum is σ = 13548110. Its totient is φ = 13548108.

The previous prime is 13548089. The next prime is 13548131. The reversal of 13548109 is 90184531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11526025 + 2022084 = 3395^2 + 1422^2 .

It is a cyclic number.

It is not a de Polignac number, because 13548109 - 2⁵ = 13548077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13548169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6774054 + 6774055.

It is an arithmetic number, because the mean of its divisors is an integer number (6774055).

Almost surely, 2^13548109 is an apocalyptic number.

It is an amenable number.

13548109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13548109 is an equidigital number, since it uses as much as digits as its factorization.

13548109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13548109 is about 3680.7755976153. The cubic root of 13548109 is about 238.3926679445.

The spelling of 13548109 in words is "thirteen million, five hundred forty-eight thousand, one hundred nine".