2081031 has 4 divisors (see below), whose sum is σ = 2774712. Its totient is φ = 1387352.

The previous prime is 2081029. The next prime is 2081033. The reversal of 2081031 is 1301802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2081029) and next prime (2081033).

It is a cyclic number.

It is not a de Polignac number, because 2081031 - 2¹ = 2081029 is a prime.

It is a super-2 number, since 2×2081031² = 8661380045922, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2081031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081033) 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, 346836 + ... + 346841.

It is an arithmetic number, because the mean of its divisors is an integer number (693678).

2^2081031 is an apocalyptic number.

2081031 is a deficient number, since it is larger than the sum of its proper divisors (693681).

2081031 is an equidigital number, since it uses as much as digits as its factorization.

2081031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693680.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2081031 is about 1442.5779008428. The cubic root of 2081031 is about 127.6711733971.

Adding to 2081031 its reverse (1301802), we get a palindrome (3382833).

The spelling of 2081031 in words is "two million, eighty-one thousand, thirty-one".