118534217 has 12 divisors (see below), whose sum is σ = 132550320. Its totient is φ = 105685056.

The previous prime is 118534211. The next prime is 118534219. The reversal of 118534217 is 712435811.

It is not a de Polignac number, because 118534217 - 2⁶ = 118534153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118534211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5303 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (11045860).

Almost surely, 2^118534217 is an apocalyptic number.

118534217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

118534217 is a deficient number, since it is larger than the sum of its proper divisors (14016103).

118534217 is a wasteful number, since it uses less digits than its factorization.

118534217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21640 (or 21623 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 118534217 is about 10887.3420539634. The cubic root of 118534217 is about 491.2258864988.

The spelling of 118534217 in words is "one hundred eighteen million, five hundred thirty-four thousand, two hundred seventeen".