1000057 has 4 divisors (see below), whose sum is σ = 1018980. Its totient is φ = 981136.

The previous prime is 1000039. The next prime is 1000081. The reversal of 1000057 is 7500001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7500001 = 23 ⋅326087.

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 118336 = 939^2 + 344^2 .

It is not a de Polignac number, because 1000057 - 2¹¹ = 998009 is a prime.

It is a super-2 number, since 2×1000057² = 2000228006498, 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 (1000037) 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, 9382 + ... + 9487.

It is an arithmetic number, because the mean of its divisors is an integer number (254745).

2^1000057 is an apocalyptic number.

It is an amenable number.

1000057 is a deficient number, since it is larger than the sum of its proper divisors (18923).

1000057 is an equidigital number, since it uses as much as digits as its factorization.

1000057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18922.

The product of its (nonzero) digits is 35, while the sum is 13.

The square root of 1000057 is about 1000.0284995939. The cubic root of 1000057 is about 100.0018999639.

Adding to 1000057 its reverse (7500001), we get a palindrome (8500058).

The spelling of 1000057 in words is "one million, fifty-seven", and thus it is an aban number and an uban number.