117121000 has 64 divisors (see below), whose sum is σ = 276054480. Its totient is φ = 46508800.

The previous prime is 117120979. The next prime is 117121057. The reversal of 117121000 is 121711.

It can be written as a sum of positive squares in 8 ways, for example, as 57244356 + 59876644 = 7566^2 + 7738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172662 + ... + 173338.

Almost surely, 2^117121000 is an apocalyptic number.

117121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138027240).

117121000 is an abundant number, since it is smaller than the sum of its proper divisors (158933480).

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

117121000 is a wasteful number, since it uses less digits than its factorization.

117121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 117121000 is about 10822.2456080058. The cubic root of 117121000 is about 489.2658727610.

Adding to 117121000 its reverse (121711), we get a palindrome (117242711).

The spelling of 117121000 in words is "one hundred seventeen million, one hundred twenty-one thousand".