3161323 has 4 divisors (see below), whose sum is σ = 3448728. Its totient is φ = 2873920.

The previous prime is 3161321. The next prime is 3161329. The reversal of 3161323 is 3231613.

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 3161323 - 2¹ = 3161321 is a prime.

It is a super-2 number, since 2×3161323² = 19987926220658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3161323.

It is not an unprimeable number, because it can be changed into a prime (3161321) 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, 143686 + ... + 143707.

It is an arithmetic number, because the mean of its divisors is an integer number (862182).

Almost surely, 2^3161323 is an apocalyptic number.

3161323 is a deficient number, since it is larger than the sum of its proper divisors (287405).

3161323 is a wasteful number, since it uses less digits than its factorization.

3161323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287404.

The product of its digits is 324, while the sum is 19.

The square root of 3161323 is about 1778.0109673453. The cubic root of 3161323 is about 146.7651548090.

Adding to 3161323 its reverse (3231613), we get a palindrome (6392936).

The spelling of 3161323 in words is "three million, one hundred sixty-one thousand, three hundred twenty-three".