3161623 has 4 divisors (see below), whose sum is σ = 3178368. Its totient is φ = 3144880.

The previous prime is 3161617. The next prime is 3161629. The reversal of 3161623 is 3261613.

3161623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3261613 = 317 ⋅10289.

It is an interprime number because it is at equal distance from previous prime (3161617) and next prime (3161629).

It is a cyclic number.

It is not a de Polignac number, because 3161623 - 2¹⁷ = 3030551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3161594 and 3161603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8086 + ... + 8467.

It is an arithmetic number, because the mean of its divisors is an integer number (794592).

Almost surely, 2^3161623 is an apocalyptic number.

3161623 is a deficient number, since it is larger than the sum of its proper divisors (16745).

3161623 is a wasteful number, since it uses less digits than its factorization.

3161623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744.

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

The square root of 3161623 is about 1778.0953292779. The cubic root of 3161623 is about 146.7697971854.

The spelling of 3161623 in words is "three million, one hundred sixty-one thousand, six hundred twenty-three".