118493193 has 32 divisors (see below), whose sum is σ = 195365632. Its totient is φ = 62208000.

The previous prime is 118493149. The next prime is 118493209. The reversal of 118493193 is 391394811.

It is a happy number.

It is not a de Polignac number, because 118493193 - 2¹⁰ = 118492169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (118493143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64893 + ... + 66693.

It is an arithmetic number, because the mean of its divisors is an integer number (6105176).

Almost surely, 2^118493193 is an apocalyptic number.

118493193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

118493193 is a deficient number, since it is larger than the sum of its proper divisors (76872439).

118493193 is a wasteful number, since it uses less digits than its factorization.

118493193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its digits is 23328, while the sum is 39.

The square root of 118493193 is about 10885.4578681836. The cubic root of 118493193 is about 491.1692098234.

The spelling of 118493193 in words is "one hundred eighteen million, four hundred ninety-three thousand, one hundred ninety-three".