118182217 has 2 divisors, whose sum is σ = 118182218. Its totient is φ = 118182216.

The previous prime is 118182179. The next prime is 118182241. The reversal of 118182217 is 712281811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101828281 + 16353936 = 10091^2 + 4044^2 .

It is a cyclic number.

It is not a de Polignac number, because 118182217 - 2⁷ = 118182089 is a prime.

It is not a weakly prime, because it can be changed into another prime (118182277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59091108 + 59091109.

It is an arithmetic number, because the mean of its divisors is an integer number (59091109).

Almost surely, 2^118182217 is an apocalyptic number.

It is an amenable number.

118182217 is a deficient number, since it is larger than the sum of its proper divisors (1).

118182217 is an equidigital number, since it uses as much as digits as its factorization.

118182217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 31.

The square root of 118182217 is about 10871.1644730452. The cubic root of 118182217 is about 490.7391551592.

The spelling of 118182217 in words is "one hundred eighteen million, one hundred eighty-two thousand, two hundred seventeen".