1020753 has 6 divisors (see below), whose sum is σ = 1474434. Its totient is φ = 680496.

The previous prime is 1020751. The next prime is 1020757. The reversal of 1020753 is 3570201.

It can be written as a sum of positive squares in only one way, i.e., 725904 + 294849 = 852^2 + 543^2 .

It is not a de Polignac number, because 1020753 - 2¹ = 1020751 is a prime.

It is a super-3 number, since 3×1020753³ = 3190679997223493331, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020751) 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 5 ways as a sum of consecutive naturals, for example, 56700 + ... + 56717.

It is an arithmetic number, because the mean of its divisors is an integer number (245739).

2^1020753 is an apocalyptic number.

It is an amenable number.

1020753 is a deficient number, since it is larger than the sum of its proper divisors (453681).

1020753 is a wasteful number, since it uses less digits than its factorization.

1020753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113423 (or 113420 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1020753 is about 1010.3232156097. The cubic root of 1020753 is about 100.6870356767.

Adding to 1020753 its reverse (3570201), we get a palindrome (4590954).

The spelling of 1020753 in words is "one million, twenty thousand, seven hundred fifty-three".