118030109 has 16 divisors (see below), whose sum is σ = 126604800. Its totient is φ = 109714176.

The previous prime is 118030097. The next prime is 118030153. The reversal of 118030109 is 901030811.

It is a cyclic number.

It is not a de Polignac number, because 118030109 - 2⁸ = 118029853 is a prime.

It is a super-2 number, since 2×118030109² = 27862213261103762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118030009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376937 + ... + 377249.

It is an arithmetic number, because the mean of its divisors is an integer number (7912800).

Almost surely, 2^118030109 is an apocalyptic number.

118030109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

118030109 is a deficient number, since it is larger than the sum of its proper divisors (8574691).

118030109 is a wasteful number, since it uses less digits than its factorization.

118030109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 118030109 is about 10864.1662818644. The cubic root of 118030109 is about 490.5285273093.

The spelling of 118030109 in words is "one hundred eighteen million, thirty thousand, one hundred nine".