117710145 has 32 divisors (see below), whose sum is σ = 239159040. Its totient is φ = 53809920.

The previous prime is 117710107. The next prime is 117710167. The reversal of 117710145 is 541017711.

It is not a de Polignac number, because 117710145 - 2¹³ = 117701953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61336 + ... + 63225.

It is an arithmetic number, because the mean of its divisors is an integer number (7473720).

Almost surely, 2^117710145 is an apocalyptic number.

117710145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117710145 is an abundant number, since it is smaller than the sum of its proper divisors (121448895).

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

117710145 is a wasteful number, since it uses less digits than its factorization.

117710145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124582 (or 124576 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 27.

The square root of 117710145 is about 10849.4306302220. The cubic root of 117710145 is about 490.0848735391.

Adding to 117710145 its reverse (541017711), we get a palindrome (658727856).

It can be divided in two parts, 117710 and 145, that added together give a triangular number (117855 = T₄₈₅).

The spelling of 117710145 in words is "one hundred seventeen million, seven hundred ten thousand, one hundred forty-five".