13505330 has 8 divisors (see below), whose sum is σ = 24309612. Its totient is φ = 5402128.

The previous prime is 13505321. The next prime is 13505353. The reversal of 13505330 is 3350531.

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 1234321 = 3503^2 + 1111^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 675257 + ... + 675276.

Almost surely, 2^13505330 is an apocalyptic number.

13505330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13505330 is a deficient number, since it is larger than the sum of its proper divisors (10804282).

13505330 is a wasteful number, since it uses less digits than its factorization.

13505330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350540.

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 13505330 is about 3674.9598637264. The cubic root of 13505330 is about 238.1414901447.

Adding to 13505330 its reverse (3350531), we get a palindrome (16855861).

The spelling of 13505330 in words is "thirteen million, five hundred five thousand, three hundred thirty".