102452521 has 2 divisors, whose sum is σ = 102452522. Its totient is φ = 102452520.

The previous prime is 102452513. The next prime is 102452533. The reversal of 102452521 is 125254201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98307225 + 4145296 = 9915^2 + 2036^2 .

It is a cyclic number.

It is not a de Polignac number, because 102452521 - 2³ = 102452513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102452492 and 102452501.

It is not a weakly prime, because it can be changed into another prime (102452501) 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 as a sum of consecutive naturals, namely, 51226260 + 51226261.

It is an arithmetic number, because the mean of its divisors is an integer number (51226261).

Almost surely, 2^102452521 is an apocalyptic number.

It is an amenable number.

102452521 is a deficient number, since it is larger than the sum of its proper divisors (1).

102452521 is an equidigital number, since it uses as much as digits as its factorization.

102452521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 102452521 is about 10121.8832733835. The cubic root of 102452521 is about 467.9228100345.

The spelling of 102452521 in words is "one hundred two million, four hundred fifty-two thousand, five hundred twenty-one".