1021536 has 36 divisors (see below), whose sum is σ = 2905812. Its totient is φ = 340416.

The previous prime is 1021487. The next prime is 1021541. The reversal of 1021536 is 6351201.

1021536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1486 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (80717).

2^1021536 is an apocalyptic number.

1021536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1021536 is an abundant number, since it is smaller than the sum of its proper divisors (1884276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021536 is a wasteful number, since it uses less digits than its factorization.

1021536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563 (or 3552 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1021536 is about 1010.7106410838. The cubic root of 1021536 is about 100.7127741264.

Adding to 1021536 its reverse (6351201), we get a palindrome (7372737).

The spelling of 1021536 in words is "one million, twenty-one thousand, five hundred thirty-six".