117129775 has 24 divisors (see below), whose sum is σ = 174730880. Its totient is φ = 76088160.

The previous prime is 117129773. The next prime is 117129787. The reversal of 117129775 is 577921711.

It is not a de Polignac number, because 117129775 - 2¹ = 117129773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117129773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14289 + ... + 20938.

Almost surely, 2^117129775 is an apocalyptic number.

117129775 is a deficient number, since it is larger than the sum of its proper divisors (57601105).

117129775 is a wasteful number, since it uses less digits than its factorization.

117129775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35263 (or 35258 counting only the distinct ones).

The product of its digits is 30870, while the sum is 40.

The square root of 117129775 is about 10822.6510153474. The cubic root of 117129775 is about 489.2780914659.

The spelling of 117129775 in words is "one hundred seventeen million, one hundred twenty-nine thousand, seven hundred seventy-five".