169000129 has 2 divisors, whose sum is σ = 169000130. Its totient is φ = 169000128.

The previous prime is 169000103. The next prime is 169000133. The reversal of 169000129 is 921000961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128867904 + 40132225 = 11352^2 + 6335^2 .

It is a cyclic number.

It is not a de Polignac number, because 169000129 - 2¹³ = 168991937 is a prime.

It is a super-2 number, since 2×169000129² = 57122087204033282, which contains 22 as substring.

It is equal to p_9450217 and since 169000129 and 9450217 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 169000097 and 169000106.

It is not a weakly prime, because it can be changed into another prime (169000229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84500064 + 84500065.

It is an arithmetic number, because the mean of its divisors is an integer number (84500065).

Almost surely, 2^169000129 is an apocalyptic number.

It is an amenable number.

169000129 is a deficient number, since it is larger than the sum of its proper divisors (1).

169000129 is an equidigital number, since it uses as much as digits as its factorization.

169000129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 169000129 is about 13000.0049615375. The cubic root of 169000129 is about 552.8776220408.

The spelling of 169000129 in words is "one hundred sixty-nine million, one hundred twenty-nine", and thus it is an aban number.