117145000 has 80 divisors (see below), whose sum is σ = 313774560. Its totient is φ = 40152000.

The previous prime is 117144983. The next prime is 117145027. The reversal of 117145000 is 541711.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33327 + ... + 36673.

It is an arithmetic number, because the mean of its divisors is an integer number (3922182).

Almost surely, 2^117145000 is an apocalyptic number.

117145000 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 117145000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156887280).

117145000 is an abundant number, since it is smaller than the sum of its proper divisors (196629560).

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

117145000 is an equidigital number, since it uses as much as digits as its factorization.

117145000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380 (or 3361 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 117145000 is about 10823.3543783801. The cubic root of 117145000 is about 489.2992899932.

Adding to 117145000 its reverse (541711), we get a palindrome (117686711).

The spelling of 117145000 in words is "one hundred seventeen million, one hundred forty-five thousand".