117773128 has 16 divisors (see below), whose sum is σ = 240899760. Its totient is φ = 53533200.

The previous prime is 117773111. The next prime is 117773143. The reversal of 117773128 is 821377711.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669078 + ... + 669253.

It is an arithmetic number, because the mean of its divisors is an integer number (15056235).

Almost surely, 2^117773128 is an apocalyptic number.

It is an amenable number.

117773128 is an abundant number, since it is smaller than the sum of its proper divisors (123126632).

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

117773128 is a wasteful number, since it uses less digits than its factorization.

117773128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338348 (or 1338344 counting only the distinct ones).

The product of its digits is 16464, while the sum is 37.

The square root of 117773128 is about 10852.3328367683. The cubic root of 117773128 is about 490.1722676259.

It can be divided in two parts, 1177 and 73128, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 117773128 in words is "one hundred seventeen million, seven hundred seventy-three thousand, one hundred twenty-eight".