102252321 has 8 divisors (see below), whose sum is σ = 151484960. Its totient is φ = 68168196.

The previous prime is 102252313. The next prime is 102252329. The reversal of 102252321 is 123252201.

It is an interprime number because it is at equal distance from previous prime (102252313) and next prime (102252329).

It is not a de Polignac number, because 102252321 - 2³ = 102252313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102252294 and 102252303.

It is not an unprimeable number, because it can be changed into a prime (102252329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893535 + ... + 1893588.

It is an arithmetic number, because the mean of its divisors is an integer number (18935620).

Almost surely, 2^102252321 is an apocalyptic number.

It is an amenable number.

102252321 is a deficient number, since it is larger than the sum of its proper divisors (49232639).

102252321 is an equidigital number, since it uses as much as digits as its factorization.

102252321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787132 (or 3787126 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102252321 is about 10111.9889734908. The cubic root of 102252321 is about 467.6178257353.

The spelling of 102252321 in words is "one hundred two million, two hundred fifty-two thousand, three hundred twenty-one".