13020807 has 4 divisors (see below), whose sum is σ = 17361080. Its totient is φ = 8680536.

The previous prime is 13020803. The next prime is 13020809. The reversal of 13020807 is 70802031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13020807 - 2² = 13020803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170132 + ... + 2170137.

It is an arithmetic number, because the mean of its divisors is an integer number (4340270).

Almost surely, 2^13020807 is an apocalyptic number.

13020807 is a deficient number, since it is larger than the sum of its proper divisors (4340273).

13020807 is an equidigital number, since it uses as much as digits as its factorization.

13020807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340272.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 13020807 is about 3608.4355335796. The cubic root of 13020807 is about 235.2588486242.

Adding to 13020807 its reverse (70802031), we get a palindrome (83822838).

The spelling of 13020807 in words is "thirteen million, twenty thousand, eight hundred seven".