3138313 has 4 divisors (see below), whose sum is σ = 3176208. Its totient is φ = 3100420.

The previous prime is 3138299. The next prime is 3138329.

3138313 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3138313 - 2¹⁷ = 3007241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3138383) 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, 18823 + ... + 18988.

It is an arithmetic number, because the mean of its divisors is an integer number (794052).

Almost surely, 2^3138313 is an apocalyptic number.

It is an amenable number.

3138313 is a deficient number, since it is larger than the sum of its proper divisors (37895).

3138313 is an equidigital number, since it uses as much as digits as its factorization.

3138313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37894.

The product of its digits is 648, while the sum is 22.

The square root of 3138313 is about 1771.5284361251. The cubic root of 3138313 is about 146.4082058416.

The spelling of 3138313 in words is "three million, one hundred thirty-eight thousand, three hundred thirteen".