118842649 has 8 divisors (see below), whose sum is σ = 121714560. Its totient is φ = 115985136.

The previous prime is 118842617. The next prime is 118842671. The reversal of 118842649 is 946248811.

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 118842649 - 2⁵ = 118842617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118842749) 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 7 ways as a sum of consecutive naturals, for example, 14142 + ... + 20920.

It is an arithmetic number, because the mean of its divisors is an integer number (15214320).

Almost surely, 2^118842649 is an apocalyptic number.

It is an amenable number.

118842649 is a deficient number, since it is larger than the sum of its proper divisors (2871911).

118842649 is an equidigital number, since it uses as much as digits as its factorization.

118842649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199.

The product of its digits is 110592, while the sum is 43.

The square root of 118842649 is about 10901.4975576753. The cubic root of 118842649 is about 491.6515823136.

The spelling of 118842649 in words is "one hundred eighteen million, eight hundred forty-two thousand, six hundred forty-nine".