13012505 has 16 divisors (see below), whose sum is σ = 17207424. Its totient is φ = 9367680.

The previous prime is 13012499. The next prime is 13012523. The reversal of 13012505 is 50521031.

It is not a de Polignac number, because 13012505 - 2¹⁴ = 12996121 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 4517 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1075464).

Almost surely, 2^13012505 is an apocalyptic number.

It is an amenable number.

13012505 is a deficient number, since it is larger than the sum of its proper divisors (4194919).

13012505 is a wasteful number, since it uses less digits than its factorization.

13012505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13012505 is about 3607.2849901276. The cubic root of 13012505 is about 235.2088380473.

Adding to 13012505 its reverse (50521031), we get a palindrome (63533536).

The spelling of 13012505 in words is "thirteen million, twelve thousand, five hundred five".