1051081 has 2 divisors, whose sum is σ = 1051082. Its totient is φ = 1051080.

The previous prime is 1051079. The next prime is 1051139. The reversal of 1051081 is 1801501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 241081 = 900^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051081 - 2¹ = 1051079 is a prime.

It is a super-2 number, since 2×1051081² = 2209542537122, which contains 22 as substring.

Together with 1051079, it forms a pair of twin primes.

1051081 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1051051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525540 + 525541.

It is an arithmetic number, because the mean of its divisors is an integer number (525541).

2^1051081 is an apocalyptic number.

It is an amenable number.

1051081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051081 is an equidigital number, since it uses as much as digits as its factorization.

1051081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1051081 is about 1025.2224148935. Note that the first 3 decimals coincide. The cubic root of 1051081 is about 101.6745038600.

Adding to 1051081 its reverse (1801501), we get a palindrome (2852582).

The spelling of 1051081 in words is "one million, fifty-one thousand, eighty-one".