117255940 has 24 divisors (see below), whose sum is σ = 247668120. Its totient is φ = 46629888.

The previous prime is 117255937. The next prime is 117255949. The reversal of 117255940 is 49552711.

It can be written as a sum of positive squares in 4 ways, for example, as 65674816 + 51581124 = 8104^2 + 7182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 117255896 and 117255905.

It is not an unprimeable number, because it can be changed into a prime (117255949) 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, 13485 + ... + 20404.

It is an arithmetic number, because the mean of its divisors is an integer number (10319505).

Almost surely, 2^117255940 is an apocalyptic number.

117255940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117255940 is an abundant number, since it is smaller than the sum of its proper divisors (130412180).

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

117255940 is a wasteful number, since it uses less digits than its factorization.

117255940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34071 (or 34069 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 117255940 is about 10828.4781940954. The cubic root of 117255940 is about 489.4537018656.

The spelling of 117255940 in words is "one hundred seventeen million, two hundred fifty-five thousand, nine hundred forty".