13539241 has 2 divisors, whose sum is σ = 13539242. Its totient is φ = 13539240.

The previous prime is 13539223. The next prime is 13539277. The reversal of 13539241 is 14293531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 143641 = 3660^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 13539241 - 2⁹ = 13538729 is a prime.

It is a super-2 number, since 2×13539241² = 366622093712162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13539641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6769620 + 6769621.

It is an arithmetic number, because the mean of its divisors is an integer number (6769621).

Almost surely, 2^13539241 is an apocalyptic number.

It is an amenable number.

13539241 is a deficient number, since it is larger than the sum of its proper divisors (1).

13539241 is an equidigital number, since it uses as much as digits as its factorization.

13539241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 13539241 is about 3679.5707630103. The cubic root of 13539241 is about 238.3406427847.

The spelling of 13539241 in words is "thirteen million, five hundred thirty-nine thousand, two hundred forty-one".