129117119 has 4 divisors (see below), whose sum is σ = 129141144. Its totient is φ = 129093096.

The previous prime is 129117097. The next prime is 129117133. The reversal of 129117119 is 911711921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129117119 - 2¹⁶ = 129051583 is a prime.

It is a super-2 number, since 2×129117119² = 33342460837720322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129117199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164 + ... + 16070.

It is an arithmetic number, because the mean of its divisors is an integer number (32285286).

Almost surely, 2^129117119 is an apocalyptic number.

129117119 is a deficient number, since it is larger than the sum of its proper divisors (24025).

129117119 is an equidigital number, since it uses as much as digits as its factorization.

129117119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24024.

The product of its digits is 1134, while the sum is 32.

The square root of 129117119 is about 11362.9713983623. The cubic root of 129117119 is about 505.4303021312.

The spelling of 129117119 in words is "one hundred twenty-nine million, one hundred seventeen thousand, one hundred nineteen".