118005577 has 4 divisors (see below), whose sum is σ = 118123540. Its totient is φ = 117887616.

The previous prime is 118005527. The next prime is 118005583. The reversal of 118005577 is 775500811.

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 25441936 + 92563641 = 5044^2 + 9621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118005577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118005527) 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 3 ways as a sum of consecutive naturals, for example, 57468 + ... + 59485.

It is an arithmetic number, because the mean of its divisors is an integer number (29530885).

Almost surely, 2^118005577 is an apocalyptic number.

It is an amenable number.

118005577 is a deficient number, since it is larger than the sum of its proper divisors (117963).

118005577 is a wasteful number, since it uses less digits than its factorization.

118005577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117962.

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 118005577 is about 10863.0371903994. The cubic root of 118005577 is about 490.4945402763.

The spelling of 118005577 in words is "one hundred eighteen million, five thousand, five hundred seventy-seven".