13530307 has 4 divisors (see below), whose sum is σ = 15463216. Its totient is φ = 11597400.

The previous prime is 13530301. The next prime is 13530311. The reversal of 13530307 is 70303531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70303531 = 193 ⋅364267.

It is a cyclic number.

It is not a de Polignac number, because 13530307 - 2¹¹ = 13528259 is a prime.

It is a super-3 number, since 3×13530307³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966444 + ... + 966457.

It is an arithmetic number, because the mean of its divisors is an integer number (3865804).

Almost surely, 2^13530307 is an apocalyptic number.

13530307 is a deficient number, since it is larger than the sum of its proper divisors (1932909).

13530307 is an equidigital number, since it uses as much as digits as its factorization.

13530307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932908.

The product of its (nonzero) digits is 945, while the sum is 22.

The square root of 13530307 is about 3678.3565623795. The cubic root of 13530307 is about 238.2882074518.

Adding to 13530307 its reverse (70303531), we get a palindrome (83833838).

The spelling of 13530307 in words is "thirteen million, five hundred thirty thousand, three hundred seven".