117771140 has 12 divisors (see below), whose sum is σ = 247319436. Its totient is φ = 47108448.

The previous prime is 117771133. The next prime is 117771149. The reversal of 117771140 is 41177711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46267204 + 71503936 = 6802^2 + 8456^2 .

It is not an unprimeable number, because it can be changed into a prime (117771149) 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, 2944259 + ... + 2944298.

It is an arithmetic number, because the mean of its divisors is an integer number (20609953).

Almost surely, 2^117771140 is an apocalyptic number.

117771140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117771140 is an abundant number, since it is smaller than the sum of its proper divisors (129548296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117771140 is a wasteful number, since it uses less digits than its factorization.

117771140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888566 (or 5888564 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 29.

The square root of 117771140 is about 10852.2412431718. The cubic root of 117771140 is about 490.1695095889.

The spelling of 117771140 in words is "one hundred seventeen million, seven hundred seventy-one thousand, one hundred forty".