1020057 has 8 divisors (see below), whose sum is σ = 1379520. Its totient is φ = 670320.

The previous prime is 1020049. The next prime is 1020059. The reversal of 1020057 is 7500201.

It is a happy number.

1020057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020057 - 2³ = 1020049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2182 + ... + 2607.

It is an arithmetic number, because the mean of its divisors is an integer number (172440).

2^1020057 is an apocalyptic number.

It is an amenable number.

1020057 is a deficient number, since it is larger than the sum of its proper divisors (359463).

1020057 is an equidigital number, since it uses as much as digits as its factorization.

1020057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 1020057 is about 1009.9787126470. The cubic root of 1020057 is about 100.6641460026.

Adding to 1020057 its reverse (7500201), we get a palindrome (8520258).

The spelling of 1020057 in words is "one million, twenty thousand, fifty-seven".