118630331 has 4 divisors (see below), whose sum is σ = 118810464. Its totient is φ = 118450200.

The previous prime is 118630327. The next prime is 118630333. The reversal of 118630331 is 133036811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 118630331 - 2² = 118630327 is a prime.

It is a super-2 number, since 2×118630331² = 28146310866339122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118630331.

It is not an unprimeable number, because it can be changed into a prime (118630333) 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, 89075 + ... + 90396.

It is an arithmetic number, because the mean of its divisors is an integer number (29702616).

Almost surely, 2^118630331 is an apocalyptic number.

118630331 is a deficient number, since it is larger than the sum of its proper divisors (180133).

118630331 is an equidigital number, since it uses as much as digits as its factorization.

118630331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180132.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 118630331 is about 10891.7551845421. The cubic root of 118630331 is about 491.3586215314.

The spelling of 118630331 in words is "one hundred eighteen million, six hundred thirty thousand, three hundred thirty-one".