117018213 has 16 divisors (see below), whose sum is σ = 168448896. Its totient is φ = 71830080.

The previous prime is 117018199. The next prime is 117018217. The reversal of 117018213 is 312810711.

It is a happy number.

It is not a de Polignac number, because 117018213 - 2⁹ = 117017701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117018217) 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, 12856 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (10528056).

Almost surely, 2^117018213 is an apocalyptic number.

117018213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

117018213 is a deficient number, since it is larger than the sum of its proper divisors (51430683).

117018213 is a wasteful number, since it uses less digits than its factorization.

117018213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7564.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 117018213 is about 10817.4956898535. The cubic root of 117018213 is about 489.1227020508.

Adding to 117018213 its reverse (312810711), we get a palindrome (429828924).

The spelling of 117018213 in words is "one hundred seventeen million, eighteen thousand, two hundred thirteen".