2031945 has 8 divisors (see below), whose sum is σ = 3251136. Its totient is φ = 1083696.

The previous prime is 2031937. The next prime is 2031961. The reversal of 2031945 is 5491302.

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

It is not a de Polignac number, because 2031945 - 2³ = 2031937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67717 + ... + 67746.

It is an arithmetic number, because the mean of its divisors is an integer number (406392).

2^2031945 is an apocalyptic number.

It is an amenable number.

2031945 is a deficient number, since it is larger than the sum of its proper divisors (1219191).

2031945 is a wasteful number, since it uses less digits than its factorization.

2031945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135471.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2031945 is about 1425.4630826507. The cubic root of 2031945 is about 126.6593678466.

The spelling of 2031945 in words is "two million, thirty-one thousand, nine hundred forty-five".