3217139 has 4 divisors (see below), whose sum is σ = 3265224. Its totient is φ = 3169056.

The previous prime is 3217133. The next prime is 3217141. The reversal of 3217139 is 9317123.

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

It is a cyclic number.

It is not a de Polignac number, because 3217139 - 2²⁰ = 2168563 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3217133) 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, 23942 + ... + 24075.

It is an arithmetic number, because the mean of its divisors is an integer number (816306).

Almost surely, 2^3217139 is an apocalyptic number.

3217139 is a deficient number, since it is larger than the sum of its proper divisors (48085).

3217139 is an equidigital number, since it uses as much as digits as its factorization.

3217139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48084.

The product of its digits is 1134, while the sum is 26.

The square root of 3217139 is about 1793.6384808539. The cubic root of 3217139 is about 147.6238775471.

It can be divided in two parts, 32 and 17139, that added together give a palindrome (17171).

The spelling of 3217139 in words is "three million, two hundred seventeen thousand, one hundred thirty-nine".