117142173 has 16 divisors (see below), whose sum is σ = 173769600. Its totient is φ = 77993280.

The previous prime is 117142171. The next prime is 117142217. The reversal of 117142173 is 371241711.

117142173 is a `hidden beast` number, since 1 + 171 + 421 + 73 = 666.

It is not a de Polignac number, because 117142173 - 2¹ = 117142171 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117142171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22453 + ... + 27173.

It is an arithmetic number, because the mean of its divisors is an integer number (10860600).

Almost surely, 2^117142173 is an apocalyptic number.

It is an amenable number.

117142173 is a deficient number, since it is larger than the sum of its proper divisors (56627427).

117142173 is an equidigital number, since it uses as much as digits as its factorization.

117142173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649 (or 5643 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 117142173 is about 10823.2237803715. The cubic root of 117142173 is about 489.2953539589.

Adding to 117142173 its reverse (371241711), we get a palindrome (488383884).

The spelling of 117142173 in words is "one hundred seventeen million, one hundred forty-two thousand, one hundred seventy-three".