13539850 has 12 divisors (see below), whose sum is σ = 25184214. Its totient is φ = 5415920.

The previous prime is 13539811. The next prime is 13539853. The reversal of 13539850 is 5893531.

It can be written as a sum of positive squares in 3 ways, for example, as 5536609 + 8003241 = 2353^2 + 2829^2 .

It is not an unprimeable number, because it can be changed into a prime (13539853) 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 in 5 ways as a sum of consecutive naturals, for example, 135349 + ... + 135448.

Almost surely, 2^13539850 is an apocalyptic number.

13539850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13539850 is a deficient number, since it is larger than the sum of its proper divisors (11644364).

13539850 is a wasteful number, since it uses less digits than its factorization.

13539850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270809 (or 270804 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 13539850 is about 3679.6535162974. The cubic root of 13539850 is about 238.3442162808.

The spelling of 13539850 in words is "thirteen million, five hundred thirty-nine thousand, eight hundred fifty".