129101169 has 8 divisors (see below), whose sum is σ = 176333472. Its totient is φ = 83968160.

The previous prime is 129101153. The next prime is 129101173. The reversal of 129101169 is 961101921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129101169 - 2⁴ = 129101153 is a prime.

It is a super-2 number, since 2×129101169² = 33334223674333122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129101569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524679 + ... + 524924.

It is an arithmetic number, because the mean of its divisors is an integer number (22041684).

Almost surely, 2^129101169 is an apocalyptic number.

It is an amenable number.

129101169 is a deficient number, since it is larger than the sum of its proper divisors (47232303).

129101169 is a wasteful number, since it uses less digits than its factorization.

129101169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049647.

The product of its (nonzero) digits is 972, while the sum is 30.

The square root of 129101169 is about 11362.2695356166. The cubic root of 129101169 is about 505.4094891273.

The spelling of 129101169 in words is "one hundred twenty-nine million, one hundred one thousand, one hundred sixty-nine".