2881031 has 2 divisors, whose sum is σ = 2881032. Its totient is φ = 2881030.

The previous prime is 2881009. The next prime is 2881057. The reversal of 2881031 is 1301882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2881031 - 2¹⁴ = 2864647 is a prime.

It is a super-2 number, since 2×2881031² = 16600679245922, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₀₈₈₄₁ and since 2881031 and 208841 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2880988 and 2881006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2881061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440515 + 1440516.

It is an arithmetic number, because the mean of its divisors is an integer number (1440516).

2^2881031 is an apocalyptic number.

2881031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2881031 is an equidigital number, since it uses as much as digits as its factorization.

2881031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 2881031 is about 1697.3600089551. The cubic root of 2881031 is about 142.2927077328.

The spelling of 2881031 in words is "two million, eight hundred eighty-one thousand, thirty-one".