102314521 has 2 divisors, whose sum is σ = 102314522. Its totient is φ = 102314520.

The previous prime is 102314519. The next prime is 102314573. The reversal of 102314521 is 125413201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102313225 + 1296 = 10115^2 + 36^2 .

It is a cyclic number.

It is not a de Polignac number, because 102314521 - 2¹ = 102314519 is a prime.

It is a super-2 number, since 2×102314521² = 20936522414918882, which contains 22 as substring.

Together with 102314519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102314021) 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 as a sum of consecutive naturals, namely, 51157260 + 51157261.

It is an arithmetic number, because the mean of its divisors is an integer number (51157261).

Almost surely, 2^102314521 is an apocalyptic number.

It is an amenable number.

102314521 is a deficient number, since it is larger than the sum of its proper divisors (1).

102314521 is an equidigital number, since it uses as much as digits as its factorization.

102314521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102314521 is about 10115.0640630695. The cubic root of 102314521 is about 467.7126236915.

Adding to 102314521 its reverse (125413201), we get a palindrome (227727722).

The spelling of 102314521 in words is "one hundred two million, three hundred fourteen thousand, five hundred twenty-one".