102682381 has 2 divisors, whose sum is σ = 102682382. Its totient is φ = 102682380.

The previous prime is 102682379. The next prime is 102682399. The reversal of 102682381 is 183286201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 49829481 = 7270^2 + 7059^2 .

It is a cyclic number.

It is not a de Polignac number, because 102682381 - 2¹ = 102682379 is a prime.

It is a super-2 number, since 2×102682381² = 21087342735658322, which contains 22 as substring.

Together with 102682379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102682681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51341190 + 51341191.

It is an arithmetic number, because the mean of its divisors is an integer number (51341191).

Almost surely, 2^102682381 is an apocalyptic number.

It is an amenable number.

102682381 is a deficient number, since it is larger than the sum of its proper divisors (1).

102682381 is an equidigital number, since it uses as much as digits as its factorization.

102682381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 102682381 is about 10133.2315181289. The cubic root of 102682381 is about 468.2724887571.

The spelling of 102682381 in words is "one hundred two million, six hundred eighty-two thousand, three hundred eighty-one".