2031895 has 8 divisors (see below), whose sum is σ = 2517120. Its totient is φ = 1572960.

The previous prime is 2031893. The next prime is 2031907. The reversal of 2031895 is 5981302.

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

It is not a de Polignac number, because 2031895 - 2¹ = 2031893 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6400 + ... + 6709.

It is an arithmetic number, because the mean of its divisors is an integer number (314640).

2^2031895 is an apocalyptic number.

2031895 is a deficient number, since it is larger than the sum of its proper divisors (485225).

2031895 is a wasteful number, since it uses less digits than its factorization.

2031895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13145.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2031895 is about 1425.4455443825. The cubic root of 2031895 is about 126.6583289372.

It can be divided in two parts, 2031 and 895, that added together give a triangular number (2926 = T₇₆).

The spelling of 2031895 in words is "two million, thirty-one thousand, eight hundred ninety-five".