117311445 has 24 divisors (see below), whose sum is σ = 205920000. Its totient is φ = 61772256.

The previous prime is 117311429. The next prime is 117311449. The reversal of 117311445 is 544113711.

It is not a de Polignac number, because 117311445 - 2⁴ = 117311429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117311449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12945 + ... + 20054.

It is an arithmetic number, because the mean of its divisors is an integer number (8580000).

Almost surely, 2^117311445 is an apocalyptic number.

117311445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117311445 is a deficient number, since it is larger than the sum of its proper divisors (88608555).

117311445 is a wasteful number, since it uses less digits than its factorization.

117311445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33089 (or 33086 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 117311445 is about 10831.0408087127. The cubic root of 117311445 is about 489.5309199641.

The spelling of 117311445 in words is "one hundred seventeen million, three hundred eleven thousand, four hundred forty-five".