118246217 has 4 divisors (see below), whose sum is σ = 118268100. Its totient is φ = 118224336.

The previous prime is 118246189. The next prime is 118246229. The reversal of 118246217 is 712642811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111175936 + 7070281 = 10544^2 + 2659^2 .

It is a cyclic number.

It is not a de Polignac number, because 118246217 - 2⁶ = 118246153 is a prime.

It is a super-2 number, since 2×118246217² = 27964335669622178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118246267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3659 + ... + 15807.

It is an arithmetic number, because the mean of its divisors is an integer number (29567025).

Almost surely, 2^118246217 is an apocalyptic number.

It is an amenable number.

118246217 is a deficient number, since it is larger than the sum of its proper divisors (21883).

118246217 is an equidigital number, since it uses as much as digits as its factorization.

118246217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882.

The product of its digits is 5376, while the sum is 32.

The square root of 118246217 is about 10874.1076415493. The cubic root of 118246217 is about 490.8277235835.

The spelling of 118246217 in words is "one hundred eighteen million, two hundred forty-six thousand, two hundred seventeen".