1020535 has 4 divisors (see below), whose sum is σ = 1224648. Its totient is φ = 816424.

The previous prime is 1020529. The next prime is 1020541. The reversal of 1020535 is 5350201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1020529) and next prime (1020541).

It is a cyclic number.

It is not a de Polignac number, because 1020535 - 2⁷ = 1020407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102049 + ... + 102058.

It is an arithmetic number, because the mean of its divisors is an integer number (306162).

2^1020535 is an apocalyptic number.

1020535 is a deficient number, since it is larger than the sum of its proper divisors (204113).

1020535 is an equidigital number, since it uses as much as digits as its factorization.

1020535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204112.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1020535 is about 1010.2153235821. The cubic root of 1020535 is about 100.6798673292.

Adding to 1020535 its reverse (5350201), we get a palindrome (6370736).

The spelling of 1020535 in words is "one million, twenty thousand, five hundred thirty-five".