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BaseRepresentation
bin111000111001001
31110221212
413013021
51413004
6342505
7150632
oct70711
943855
1029129
111a981
1214a35
1310349
14a889
15896e
hex71c9

29129 has 2 divisors, whose sum is σ = 29130. Its totient is φ = 29128.

The previous prime is 29123. The next prime is 29131. The reversal of 29129 is 92192.

It can be divided in two parts, 29 and 129, that multiplied together give a triangular number (3741 = T86).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21904 + 7225 = 148^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 29129 - 212 = 25033 is a prime.

Together with 29131, 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 (29123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14564 + 14565.

It is an arithmetic number, because the mean of its divisors is an integer number (14565).

229129 is an apocalyptic number.

It is an amenable number.

29129 is a deficient number, since it is larger than the sum of its proper divisors (1).

29129 is an equidigital number, since it uses as much as digits as its factorization.

29129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 23.

The square root of 29129 is about 170.6722004311. The cubic root of 29129 is about 30.7686559187.

The spelling of 29129 in words is "twenty-nine thousand, one hundred twenty-nine".