13352945 has 4 divisors (see below), whose sum is σ = 16023540. Its totient is φ = 10682352.

The previous prime is 13352929. The next prime is 13352959. The reversal of 13352945 is 54925331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54925331 = 53 ⋅1036327.

It can be written as a sum of positive squares in 2 ways, for example, as 9878449 + 3474496 = 3143^2 + 1864^2 .

It is a cyclic number.

It is not a de Polignac number, because 13352945 - 2⁴ = 13352929 is a prime.

It is a super-2 number, since 2×13352945² = 356602280346050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335290 + ... + 1335299.

It is an arithmetic number, because the mean of its divisors is an integer number (4005885).

Almost surely, 2^13352945 is an apocalyptic number.

It is an amenable number.

13352945 is a deficient number, since it is larger than the sum of its proper divisors (2670595).

13352945 is an equidigital number, since it uses as much as digits as its factorization.

13352945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670594.

The product of its digits is 16200, while the sum is 32.

The square root of 13352945 is about 3654.1681679967. The cubic root of 13352945 is about 237.2424243538.

The spelling of 13352945 in words is "thirteen million, three hundred fifty-two thousand, nine hundred forty-five".