13340825 has 6 divisors (see below), whose sum is σ = 16542654. Its totient is φ = 10672640.

The previous prime is 13340813. The next prime is 13340849. The reversal of 13340825 is 52804331.

It can be written as a sum of positive squares in 3 ways, for example, as 3721 + 13337104 = 61^2 + 3652^2 .

It is not a de Polignac number, because 13340825 - 2¹⁶ = 13275289 is a prime.

It is a super-2 number, since 2×13340825² = 355955223361250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13340794 and 13340803.

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 5 ways as a sum of consecutive naturals, for example, 266792 + ... + 266841.

It is an arithmetic number, because the mean of its divisors is an integer number (2757109).

Almost surely, 2^13340825 is an apocalyptic number.

It is an amenable number.

13340825 is a deficient number, since it is larger than the sum of its proper divisors (3201829).

13340825 is an equidigital number, since it uses as much as digits as its factorization.

13340825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533643 (or 533638 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 13340825 is about 3652.5094113500. The cubic root of 13340825 is about 237.1706237490.

The spelling of 13340825 in words is "thirteen million, three hundred forty thousand, eight hundred twenty-five".