117771005 has 16 divisors (see below), whose sum is σ = 154868544. Its totient is φ = 85265280.

The previous prime is 117770999. The next prime is 117771007. The reversal of 117771005 is 500177711.

It is not a de Polignac number, because 117771005 - 2⁸ = 117770749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117771007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7769 + ... + 17201.

It is an arithmetic number, because the mean of its divisors is an integer number (9679284).

Almost surely, 2^117771005 is an apocalyptic number.

It is an amenable number.

117771005 is a deficient number, since it is larger than the sum of its proper divisors (37097539).

117771005 is a wasteful number, since it uses less digits than its factorization.

117771005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9676.

The product of its (nonzero) digits is 1715, while the sum is 29.

The square root of 117771005 is about 10852.2350232567. The cubic root of 117771005 is about 490.1693222965.

The spelling of 117771005 in words is "one hundred seventeen million, seven hundred seventy-one thousand, five".