117312045 has 8 divisors (see below), whose sum is σ = 187699296. Its totient is φ = 62566416.

The previous prime is 117312043. The next prime is 117312079. The reversal of 117312045 is 540213711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117312045 - 2¹ = 117312043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117312043) 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, 3910387 + ... + 3910416.

It is an arithmetic number, because the mean of its divisors is an integer number (23462412).

Almost surely, 2^117312045 is an apocalyptic number.

117312045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117312045 is a deficient number, since it is larger than the sum of its proper divisors (70387251).

117312045 is an equidigital number, since it uses as much as digits as its factorization.

117312045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820811.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 117312045 is about 10831.0685068464. The cubic root of 117312045 is about 489.5317545461.

Adding to 117312045 its reverse (540213711), we get a palindrome (657525756).

The spelling of 117312045 in words is "one hundred seventeen million, three hundred twelve thousand, forty-five".