117211065 has 16 divisors (see below), whose sum is σ = 188155968. Its totient is φ = 62306496.

The previous prime is 117211051. The next prime is 117211103. The reversal of 117211065 is 560112711.

It is not a de Polignac number, because 117211065 - 2⁴ = 117211049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8122 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (11759748).

Almost surely, 2^117211065 is an apocalyptic number.

117211065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117211065 is a deficient number, since it is larger than the sum of its proper divisors (70944903).

117211065 is a wasteful number, since it uses less digits than its factorization.

117211065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25768.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 117211065 is about 10826.4059133214. The cubic root of 117211065 is about 489.3912543187.

Adding to 117211065 its reverse (560112711), we get a palindrome (677323776).

The spelling of 117211065 in words is "one hundred seventeen million, two hundred eleven thousand, sixty-five".