1010881 has 2 divisors, whose sum is σ = 1010882. Its totient is φ = 1010880.

The previous prime is 1010861. The next prime is 1010897. The reversal of 1010881 is 1880101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640000 + 370881 = 800^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010881 - 2⁷ = 1010753 is a prime.

It is a super-2 number, since 2×1010881² = 2043760792322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010861) 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 as a sum of consecutive naturals, namely, 505440 + 505441.

It is an arithmetic number, because the mean of its divisors is an integer number (505441).

2^1010881 is an apocalyptic number.

It is an amenable number.

1010881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010881 is an equidigital number, since it uses as much as digits as its factorization.

1010881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1010881 is about 1005.4257804532. The cubic root of 1010881 is about 100.3613923821.

Adding to 1010881 its reverse (1880101), we get a palindrome (2890982).

It can be divided in two parts, 1010 and 881, that added together give a triangular number (1891 = T₆₁).

The spelling of 1010881 in words is "one million, ten thousand, eight hundred eighty-one".