13501013 has 4 divisors (see below), whose sum is σ = 13830348. Its totient is φ = 13171680.

The previous prime is 13501003. The next prime is 13501031. The reversal of 13501013 is 31010531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4986289 + 8514724 = 2233^2 + 2918^2 .

It is a cyclic number.

It is not a de Polignac number, because 13501013 - 2⁴ = 13500997 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 (13501003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164606 + ... + 164687.

It is an arithmetic number, because the mean of its divisors is an integer number (3457587).

Almost surely, 2^13501013 is an apocalyptic number.

It is an amenable number.

13501013 is a deficient number, since it is larger than the sum of its proper divisors (329335).

13501013 is an equidigital number, since it uses as much as digits as its factorization.

13501013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329334.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 13501013 is about 3674.3724634283. The cubic root of 13501013 is about 238.1161133398.

Adding to 13501013 its reverse (31010531), we get a palindrome (44511544).

The spelling of 13501013 in words is "thirteen million, five hundred one thousand, thirteen".