118998361 has 4 divisors (see below), whose sum is σ = 119023924. Its totient is φ = 118972800.

The previous prime is 118998353. The next prime is 118998371. The reversal of 118998361 is 163899811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 98883136 = 4485^2 + 9944^2 .

It is a cyclic number.

It is not a de Polignac number, because 118998361 - 2³ = 118998353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118998371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3600 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (29755981).

Almost surely, 2^118998361 is an apocalyptic number.

It is an amenable number.

118998361 is a deficient number, since it is larger than the sum of its proper divisors (25563).

118998361 is an equidigital number, since it uses as much as digits as its factorization.

118998361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25562.

The product of its digits is 93312, while the sum is 46.

The square root of 118998361 is about 10908.6369909352. The cubic root of 118998361 is about 491.8662152494.

The spelling of 118998361 in words is "one hundred eighteen million, nine hundred ninety-eight thousand, three hundred sixty-one".