102829609 has 2 divisors, whose sum is σ = 102829610. Its totient is φ = 102829608.

The previous prime is 102829607. The next prime is 102829631. The reversal of 102829609 is 906928201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99600400 + 3229209 = 9980^2 + 1797^2 .

It is a cyclic number.

It is not a de Polignac number, because 102829609 - 2¹ = 102829607 is a prime.

Together with 102829607, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102829607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51414804 + 51414805.

It is an arithmetic number, because the mean of its divisors is an integer number (51414805).

Almost surely, 2^102829609 is an apocalyptic number.

It is an amenable number.

102829609 is a deficient number, since it is larger than the sum of its proper divisors (1).

102829609 is an equidigital number, since it uses as much as digits as its factorization.

102829609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 102829609 is about 10140.4935284236. The cubic root of 102829609 is about 468.4961879513.

It can be divided in two parts, 10282 and 9609, that added together give a palindrome (19891).

The spelling of 102829609 in words is "one hundred two million, eight hundred twenty-nine thousand, six hundred nine".