102136129 has 2 divisors, whose sum is σ = 102136130. Its totient is φ = 102136128.

The previous prime is 102136121. The next prime is 102136157. The reversal of 102136129 is 921631201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87329025 + 14807104 = 9345^2 + 3848^2 .

It is an emirp because it is prime and its reverse (921631201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102136129 - 2³ = 102136121 is a prime.

It is not a weakly prime, because it can be changed into another prime (102136121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51068064 + 51068065.

It is an arithmetic number, because the mean of its divisors is an integer number (51068065).

Almost surely, 2^102136129 is an apocalyptic number.

It is an amenable number.

102136129 is a deficient number, since it is larger than the sum of its proper divisors (1).

102136129 is an equidigital number, since it uses as much as digits as its factorization.

102136129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 102136129 is about 10106.2420810111. The cubic root of 102136129 is about 467.4406364613.

The spelling of 102136129 in words is "one hundred two million, one hundred thirty-six thousand, one hundred twenty-nine".