102129983 has 2 divisors, whose sum is σ = 102129984. Its totient is φ = 102129982.

The previous prime is 102129977. The next prime is 102129991. The reversal of 102129983 is 389921201.

It is a weak prime.

It is an emirp because it is prime and its reverse (389921201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102129983 is a prime.

It is equal to p_5877017 and since 102129983 and 5877017 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102129943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51064991 + 51064992.

It is an arithmetic number, because the mean of its divisors is an integer number (51064992).

Almost surely, 2^102129983 is an apocalyptic number.

102129983 is a deficient number, since it is larger than the sum of its proper divisors (1).

102129983 is an equidigital number, since it uses as much as digits as its factorization.

102129983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 102129983 is about 10105.9380069343. The cubic root of 102129983 is about 467.4312602565.

The spelling of 102129983 in words is "one hundred two million, one hundred twenty-nine thousand, nine hundred eighty-three".