1021534533 has 24 divisors (see below), whose sum is σ = 1501779968. Its totient is φ = 669023712.

The previous prime is 1021534499. The next prime is 1021534559. The reversal of 1021534533 is 3354351201.

1021534533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021534533 - 2⁶ = 1021534469 is a prime.

It is a super-2 number, since 2×1021534533² = 2087065604223056178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021534497 and 1021534506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021534433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113391 + ... + 122067.

Almost surely, 2^1021534533 is an apocalyptic number.

It is an amenable number.

1021534533 is a deficient number, since it is larger than the sum of its proper divisors (480245435).

1021534533 is a wasteful number, since it uses less digits than its factorization.

1021534533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8913 (or 8910 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1021534533 is about 31961.4538624262. The cubic root of 1021534533 is about 1007.1272591604.

Adding to 1021534533 its reverse (3354351201), we get a palindrome (4375885734).

The spelling of 1021534533 in words is "one billion, twenty-one million, five hundred thirty-four thousand, five hundred thirty-three".