118045540 has 24 divisors (see below), whose sum is σ = 254597112. Its totient is φ = 45941760.

The previous prime is 118045511. The next prime is 118045547. The reversal of 118045540 is 45540811.

It can be written as a sum of positive squares in 4 ways, for example, as 10342656 + 107702884 = 3216^2 + 10378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 118045499 and 118045508.

It is not an unprimeable number, because it can be changed into a prime (118045547) 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, 79021 + ... + 80500.

It is an arithmetic number, because the mean of its divisors is an integer number (10608213).

Almost surely, 2^118045540 is an apocalyptic number.

118045540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118045540 is an abundant number, since it is smaller than the sum of its proper divisors (136551572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118045540 is a wasteful number, since it uses less digits than its factorization.

118045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159567 (or 159565 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 118045540 is about 10864.8764374014. The cubic root of 118045540 is about 490.5499032558.

The spelling of 118045540 in words is "one hundred eighteen million, forty-five thousand, five hundred forty".