118242197 has 2 divisors, whose sum is σ = 118242198. Its totient is φ = 118242196.

The previous prime is 118242181. The next prime is 118242221. The reversal of 118242197 is 791242811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96020401 + 22221796 = 9799^2 + 4714^2 .

It is a cyclic number.

It is not a de Polignac number, because 118242197 - 2⁴ = 118242181 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118242167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59121098 + 59121099.

It is an arithmetic number, because the mean of its divisors is an integer number (59121099).

Almost surely, 2^118242197 is an apocalyptic number.

It is an amenable number.

118242197 is a deficient number, since it is larger than the sum of its proper divisors (1).

118242197 is an equidigital number, since it uses as much as digits as its factorization.

118242197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 35.

The square root of 118242197 is about 10873.9227972246. The cubic root of 118242197 is about 490.8221613201.

The spelling of 118242197 in words is "one hundred eighteen million, two hundred forty-two thousand, one hundred ninety-seven".