3160221 has 4 divisors (see below), whose sum is σ = 4213632. Its totient is φ = 2106812.

The previous prime is 3160219. The next prime is 3160247. The reversal of 3160221 is 1220613.

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 3160221 - 2¹ = 3160219 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3160221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3160211) 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, 526701 + ... + 526706.

It is an arithmetic number, because the mean of its divisors is an integer number (1053408).

Almost surely, 2^3160221 is an apocalyptic number.

It is an amenable number.

3160221 is a deficient number, since it is larger than the sum of its proper divisors (1053411).

3160221 is a wasteful number, since it uses less digits than its factorization.

3160221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053410.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3160221 is about 1777.7010434828. The cubic root of 3160221 is about 146.7480992917.

Adding to 3160221 its reverse (1220613), we get a palindrome (4380834).

The spelling of 3160221 in words is "three million, one hundred sixty thousand, two hundred twenty-one".