2281031 has 4 divisors (see below), whose sum is σ = 2312352. Its totient is φ = 2249712.

The previous prime is 2281003. The next prime is 2281033. The reversal of 2281031 is 1301822.

2281031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1301822 = 2 ⋅650911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2281031 is a prime.

It is a super-2 number, since 2×2281031² = 10406204845922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281033) 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, 15551 + ... + 15696.

It is an arithmetic number, because the mean of its divisors is an integer number (578088).

2^2281031 is an apocalyptic number.

2281031 is a deficient number, since it is larger than the sum of its proper divisors (31321).

2281031 is an equidigital number, since it uses as much as digits as its factorization.

2281031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31320.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2281031 is about 1510.3082466834. The cubic root of 2281031 is about 131.6367230595.

Adding to 2281031 its reverse (1301822), we get a palindrome (3582853).

The spelling of 2281031 in words is "two million, two hundred eighty-one thousand, thirty-one".