13020507 has 40 divisors (see below), whose sum is σ = 21083040. Its totient is φ = 7983360.

The previous prime is 13020503. The next prime is 13020523. The reversal of 13020507 is 70502031.

It is not a de Polignac number, because 13020507 - 2² = 13020503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13020507.

It is not an unprimeable number, because it can be changed into a prime (13020503) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53907 + ... + 54147.

It is an arithmetic number, because the mean of its divisors is an integer number (527076).

Almost surely, 2^13020507 is an apocalyptic number.

13020507 is a deficient number, since it is larger than the sum of its proper divisors (8062533).

13020507 is a wasteful number, since it uses less digits than its factorization.

13020507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 13020507 is about 3608.3939640788. The cubic root of 13020507 is about 235.2570418187.

Adding to 13020507 its reverse (70502031), we get a palindrome (83522538).

The spelling of 13020507 in words is "thirteen million, twenty thousand, five hundred seven".