118278347 has 6 divisors (see below), whose sum is σ = 130008564. Its totient is φ = 107525660.

The previous prime is 118278257. The next prime is 118278353. The reversal of 118278347 is 743872811.

It is not a de Polignac number, because 118278347 - 2⁸ = 118278091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118278047) 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 5 ways as a sum of consecutive naturals, for example, 488633 + ... + 488874.

It is an arithmetic number, because the mean of its divisors is an integer number (21668094).

Almost surely, 2^118278347 is an apocalyptic number.

118278347 is a deficient number, since it is larger than the sum of its proper divisors (11730217).

118278347 is an equidigital number, since it uses as much as digits as its factorization.

118278347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977529 (or 977518 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 118278347 is about 10875.5849038109. The cubic root of 118278347 is about 490.8721756514.

The spelling of 118278347 in words is "one hundred eighteen million, two hundred seventy-eight thousand, three hundred forty-seven".