13122505 has 8 divisors (see below), whose sum is σ = 17178624. Its totient is φ = 9543600.

The previous prime is 13122493. The next prime is 13122511. The reversal of 13122505 is 50522131.

13122505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13122505 - 2⁷ = 13122377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119241 + ... + 119350.

It is an arithmetic number, because the mean of its divisors is an integer number (2147328).

Almost surely, 2^13122505 is an apocalyptic number.

It is an amenable number.

13122505 is a deficient number, since it is larger than the sum of its proper divisors (4056119).

13122505 is a wasteful number, since it uses less digits than its factorization.

13122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238607.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13122505 is about 3622.4998274672. The cubic root of 13122505 is about 235.8697512159.

Adding to 13122505 its reverse (50522131), we get a palindrome (63644636).

The spelling of 13122505 in words is "thirteen million, one hundred twenty-two thousand, five hundred five".