117729319 has 4 divisors (see below), whose sum is σ = 117870480. Its totient is φ = 117588160.

The previous prime is 117729277. The next prime is 117729343. The reversal of 117729319 is 913927711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913927711 = 5171 ⋅176741.

It is a cyclic number.

It is not a de Polignac number, because 117729319 - 2¹⁹ = 117205031 is a prime.

It is a super-2 number, since 2×117729319² = 27720385104407522, 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 (117729379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69322 + ... + 70999.

It is an arithmetic number, because the mean of its divisors is an integer number (29467620).

Almost surely, 2^117729319 is an apocalyptic number.

117729319 is a deficient number, since it is larger than the sum of its proper divisors (141161).

117729319 is an equidigital number, since it uses as much as digits as its factorization.

117729319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141160.

The product of its digits is 23814, while the sum is 40.

The square root of 117729319 is about 10850.3142350809. The cubic root of 117729319 is about 490.1114823393. Note that the first 3 decimals are identical.

The spelling of 117729319 in words is "one hundred seventeen million, seven hundred twenty-nine thousand, three hundred nineteen".