102852121 has 4 divisors (see below), whose sum is σ = 105040512. Its totient is φ = 100663732.

The previous prime is 102852097. The next prime is 102852143. The reversal of 102852121 is 121258201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121258201 = 941 ⋅128861.

It is a cyclic number.

It is not a de Polignac number, because 102852121 - 2¹¹ = 102850073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102852092 and 102852101.

It is not an unprimeable number, because it can be changed into a prime (102852221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094125 + ... + 1094218.

It is an arithmetic number, because the mean of its divisors is an integer number (26260128).

Almost surely, 2^102852121 is an apocalyptic number.

It is an amenable number.

102852121 is a deficient number, since it is larger than the sum of its proper divisors (2188391).

102852121 is an equidigital number, since it uses as much as digits as its factorization.

102852121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188390.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 102852121 is about 10141.6034728242. The cubic root of 102852121 is about 468.5303740083.

The spelling of 102852121 in words is "one hundred two million, eight hundred fifty-two thousand, one hundred twenty-one".