102021093 has 16 divisors (see below), whose sum is σ = 156019200. Its totient is φ = 65819520.

The previous prime is 102021091. The next prime is 102021109. The reversal of 102021093 is 390120201.

It is a happy number.

It is not a de Polignac number, because 102021093 - 2¹ = 102021091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60108 + ... + 61781.

It is an arithmetic number, because the mean of its divisors is an integer number (9751200).

Almost surely, 2^102021093 is an apocalyptic number.

It is an amenable number.

102021093 is a deficient number, since it is larger than the sum of its proper divisors (53998107).

102021093 is a wasteful number, since it uses less digits than its factorization.

102021093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121929 (or 121923 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 102021093 is about 10100.5491434872. The cubic root of 102021093 is about 467.2650776189.

Adding to 102021093 its reverse (390120201), we get a palindrome (492141294).

The spelling of 102021093 in words is "one hundred two million, twenty-one thousand, ninety-three".