3112945 has 8 divisors (see below), whose sum is σ = 4075200. Its totient is φ = 2263920.

The previous prime is 3112943. The next prime is 3112973. The reversal of 3112945 is 5492113.

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

It is not a de Polignac number, because 3112945 - 2¹ = 3112943 is a prime.

3112945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3112943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28245 + ... + 28354.

It is an arithmetic number, because the mean of its divisors is an integer number (509400).

Almost surely, 2^3112945 is an apocalyptic number.

It is an amenable number.

3112945 is a deficient number, since it is larger than the sum of its proper divisors (962255).

3112945 is a wasteful number, since it uses less digits than its factorization.

3112945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56615.

The product of its digits is 1080, while the sum is 25.

The square root of 3112945 is about 1764.3539894250. The cubic root of 3112945 is about 146.0126498078.

The spelling of 3112945 in words is "three million, one hundred twelve thousand, nine hundred forty-five".