13345245 has 12 divisors (see below), whose sum is σ = 23131836. Its totient is φ = 7117440.

The previous prime is 13345237. The next prime is 13345253. The reversal of 13345245 is 54254331.

13345245 is a `hidden beast` number, since 133 + 4 + 524 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (13345237) and next prime (13345253).

It can be written as a sum of positive squares in 2 ways, for example, as 10169721 + 3175524 = 3189^2 + 1782^2 .

It is not a de Polignac number, because 13345245 - 2³ = 13345237 is a prime.

It is a super-2 number, since 2×13345245² = 356191128220050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148236 + ... + 148325.

It is an arithmetic number, because the mean of its divisors is an integer number (1927653).

Almost surely, 2^13345245 is an apocalyptic number.

13345245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13345245 is a deficient number, since it is larger than the sum of its proper divisors (9786591).

13345245 is a wasteful number, since it uses less digits than its factorization.

13345245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296572 (or 296569 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 13345245 is about 3653.1144247067. The cubic root of 13345245 is about 237.1968134938.

Adding to 13345245 its reverse (54254331), we get a palindrome (67599576).

The spelling of 13345245 in words is "thirteen million, three hundred forty-five thousand, two hundred forty-five".