3161845 has 8 divisors (see below), whose sum is σ = 3916800. Its totient is φ = 2447760.

The previous prime is 3161819. The next prime is 3161857. The reversal of 3161845 is 5481613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3161845 - 2¹¹ = 3159797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10045 + ... + 10354.

It is an arithmetic number, because the mean of its divisors is an integer number (489600).

Almost surely, 2^3161845 is an apocalyptic number.

It is an amenable number.

3161845 is a deficient number, since it is larger than the sum of its proper divisors (754955).

3161845 is a wasteful number, since it uses less digits than its factorization.

3161845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20435.

The product of its digits is 2880, while the sum is 28.

The square root of 3161845 is about 1778.1577545314. The cubic root of 3161845 is about 146.7732323549.

The spelling of 3161845 in words is "three million, one hundred sixty-one thousand, eight hundred forty-five".