118471493 has 8 divisors (see below), whose sum is σ = 138545088. Its totient is φ = 99185184.

The previous prime is 118471489. The next prime is 118471499. The reversal of 118471493 is 394174811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118471493 - 2² = 118471489 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 (118471499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196496 + ... + 197097.

It is an arithmetic number, because the mean of its divisors is an integer number (17318136).

Almost surely, 2^118471493 is an apocalyptic number.

It is an amenable number.

118471493 is a deficient number, since it is larger than the sum of its proper divisors (20073595).

118471493 is an equidigital number, since it uses as much as digits as its factorization.

118471493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393643.

The product of its digits is 24192, while the sum is 38.

The square root of 118471493 is about 10884.4610799065. The cubic root of 118471493 is about 491.1392249151.

The spelling of 118471493 in words is "one hundred eighteen million, four hundred seventy-one thousand, four hundred ninety-three".