118318297 has 4 divisors (see below), whose sum is σ = 118460160. Its totient is φ = 118176436.

The previous prime is 118318273. The next prime is 118318303. The reversal of 118318297 is 792813811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 792813811 = 199 ⋅3983989.

It is a cyclic number.

It is not a de Polignac number, because 118318297 - 2¹⁵ = 118285529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118318217) 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, 69673 + ... + 71350.

It is an arithmetic number, because the mean of its divisors is an integer number (29615040).

Almost surely, 2^118318297 is an apocalyptic number.

It is an amenable number.

118318297 is a deficient number, since it is larger than the sum of its proper divisors (141863).

118318297 is an equidigital number, since it uses as much as digits as its factorization.

118318297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141862.

The product of its digits is 24192, while the sum is 40.

The square root of 118318297 is about 10877.4214315710. The cubic root of 118318297 is about 490.9274355150.

The spelling of 118318297 in words is "one hundred eighteen million, three hundred eighteen thousand, two hundred ninety-seven".