13539357 has 24 divisors (see below), whose sum is σ = 21296184. Its totient is φ = 8239104.

The previous prime is 13539329. The next prime is 13539359. The reversal of 13539357 is 75393531.

It is a happy number.

13539357 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 13111641 = 654^2 + 3621^2 .

It is not a de Polignac number, because 13539357 - 2⁸ = 13539101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13539359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10753 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (887341).

Almost surely, 2^13539357 is an apocalyptic number.

It is an amenable number.

13539357 is a deficient number, since it is larger than the sum of its proper divisors (7756827).

13539357 is a wasteful number, since it uses less digits than its factorization.

13539357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1306 counting only the distinct ones).

The product of its digits is 42525, while the sum is 36.

The square root of 13539357 is about 3679.5865256846. The cubic root of 13539357 is about 238.3413234589.

The spelling of 13539357 in words is "thirteen million, five hundred thirty-nine thousand, three hundred fifty-seven".