118544997 has 4 divisors (see below), whose sum is σ = 158060000. Its totient is φ = 79029996.

The previous prime is 118544989. The next prime is 118545001. The reversal of 118544997 is 799445811.

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.

It is not a de Polignac number, because 118544997 - 2³ = 118544989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118544917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19757497 + ... + 19757502.

It is an arithmetic number, because the mean of its divisors is an integer number (39515000).

Almost surely, 2^118544997 is an apocalyptic number.

It is an amenable number.

118544997 is a deficient number, since it is larger than the sum of its proper divisors (39515003).

118544997 is an equidigital number, since it uses as much as digits as its factorization.

118544997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39515002.

The product of its digits is 362880, while the sum is 48.

The square root of 118544997 is about 10887.8371130358. The cubic root of 118544997 is about 491.2407774298.

The spelling of 118544997 in words is "one hundred eighteen million, five hundred forty-four thousand, nine hundred ninety-seven".