13539730 has 8 divisors (see below), whose sum is σ = 24371532. Its totient is φ = 5415888.

The previous prime is 13539727. The next prime is 13539737. The reversal of 13539730 is 3793531.

13539730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13300609 + 239121 = 3647^2 + 489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13539692 and 13539701.

It is not an unprimeable number, because it can be changed into a prime (13539737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676977 + ... + 676996.

Almost surely, 2^13539730 is an apocalyptic number.

13539730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13539730 is a deficient number, since it is larger than the sum of its proper divisors (10831802).

13539730 is a wasteful number, since it uses less digits than its factorization.

13539730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353980.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 13539730 is about 3679.6372103782. The cubic root of 13539730 is about 238.3435121521.

The spelling of 13539730 in words is "thirteen million, five hundred thirty-nine thousand, seven hundred thirty".