102820533 has 16 divisors (see below), whose sum is σ = 144580800. Its totient is φ = 64817280.

The previous prime is 102820499. The next prime is 102820547. The reversal of 102820533 is 335028201.

It is not a de Polignac number, because 102820533 - 2⁶ = 102820469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102820033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36313 + ... + 39041.

It is an arithmetic number, because the mean of its divisors is an integer number (9036300).

Almost surely, 2^102820533 is an apocalyptic number.

It is an amenable number.

102820533 is a deficient number, since it is larger than the sum of its proper divisors (41760267).

102820533 is a wasteful number, since it uses less digits than its factorization.

102820533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 102820533 is about 10140.0460058128. The cubic root of 102820533 is about 468.4824039950.

Adding to 102820533 its reverse (335028201), we get a palindrome (437848734).

The spelling of 102820533 in words is "one hundred two million, eight hundred twenty thousand, five hundred thirty-three".