13170813 has 8 divisors (see below), whose sum is σ = 17578176. Its totient is φ = 8772000.

The previous prime is 13170811. The next prime is 13170823. The reversal of 13170813 is 31807131.

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

It is not a de Polignac number, because 13170813 - 2¹ = 13170811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13170811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (2197272).

Almost surely, 2^13170813 is an apocalyptic number.

It is an amenable number.

13170813 is a deficient number, since it is larger than the sum of its proper divisors (4407363).

13170813 is a wasteful number, since it uses less digits than its factorization.

13170813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 13170813 is about 3629.1614733985. The cubic root of 13170813 is about 236.1588332768.

Adding to 13170813 its reverse (31807131), we get a palindrome (44977944).

The spelling of 13170813 in words is "thirteen million, one hundred seventy thousand, eight hundred thirteen".