3213161 has 4 divisors (see below), whose sum is σ = 3672192. Its totient is φ = 2754132.

The previous prime is 3213151. The next prime is 3213163. The reversal of 3213161 is 1613123.

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 a de Polignac number, because none of the positive numbers 2^k-3213161 is a prime.

It is a super-2 number, since 2×3213161² = 20648807223842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3213163) 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, 229505 + ... + 229518.

It is an arithmetic number, because the mean of its divisors is an integer number (918048).

Almost surely, 2^3213161 is an apocalyptic number.

It is an amenable number.

3213161 is a deficient number, since it is larger than the sum of its proper divisors (459031).

3213161 is an equidigital number, since it uses as much as digits as its factorization.

3213161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459030.

The product of its digits is 108, while the sum is 17.

The square root of 3213161 is about 1792.5292187298. The cubic root of 3213161 is about 147.5630066930.

Adding to 3213161 its reverse (1613123), we get a palindrome (4826284).

The spelling of 3213161 in words is "three million, two hundred thirteen thousand, one hundred sixty-one".