117145929 has 8 divisors (see below), whose sum is σ = 165382560. Its totient is φ = 73503296.

The previous prime is 117145913. The next prime is 117145933. The reversal of 117145929 is 929541711.

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 117145929 - 2⁴ = 117145913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117145939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148439 + ... + 1148540.

It is an arithmetic number, because the mean of its divisors is an integer number (20672820).

Almost surely, 2^117145929 is an apocalyptic number.

It is an amenable number.

117145929 is a deficient number, since it is larger than the sum of its proper divisors (48236631).

117145929 is a wasteful number, since it uses less digits than its factorization.

117145929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296999.

The product of its digits is 22680, while the sum is 39.

The square root of 117145929 is about 10823.3972947499. The cubic root of 117145929 is about 489.3005834268.

The spelling of 117145929 in words is "one hundred seventeen million, one hundred forty-five thousand, nine hundred twenty-nine".