118278461 has 8 divisors (see below), whose sum is σ = 138051840. Its totient is φ = 99224208.

The previous prime is 118278449. The next prime is 118278467. The reversal of 118278461 is 164872811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 118278461 - 2¹⁰ = 118277437 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 (118278467) 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, 179426 + ... + 180083.

It is an arithmetic number, because the mean of its divisors is an integer number (17256480).

Almost surely, 2^118278461 is an apocalyptic number.

It is an amenable number.

118278461 is a deficient number, since it is larger than the sum of its proper divisors (19773379).

118278461 is an equidigital number, since it uses as much as digits as its factorization.

118278461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359563.

The product of its digits is 21504, while the sum is 38.

The square root of 118278461 is about 10875.5901449071. The cubic root of 118278461 is about 490.8723333568.

The spelling of 118278461 in words is "one hundred eighteen million, two hundred seventy-eight thousand, four hundred sixty-one".