13530057 has 8 divisors (see below), whose sum is σ = 18346080. Its totient is φ = 8867040.

The previous prime is 13530019. The next prime is 13530059. The reversal of 13530057 is 75003531.

13530057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13530057 - 2⁸ = 13529801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38044 + ... + 38397.

It is an arithmetic number, because the mean of its divisors is an integer number (2293260).

Almost surely, 2^13530057 is an apocalyptic number.

It is an amenable number.

13530057 is a deficient number, since it is larger than the sum of its proper divisors (4816023).

13530057 is an equidigital number, since it uses as much as digits as its factorization.

13530057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76503.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 13530057 is about 3678.3225796550. The cubic root of 13530057 is about 238.2867398226.

Adding to 13530057 its reverse (75003531), we get a palindrome (88533588).

The spelling of 13530057 in words is "thirteen million, five hundred thirty thousand, fifty-seven".