118627661 has 8 divisors (see below), whose sum is σ = 126036120. Its totient is φ = 111440448.

The previous prime is 118627633. The next prime is 118627709. The reversal of 118627661 is 166726811.

It can be written as a sum of positive squares in 4 ways, for example, as 14485636 + 104142025 = 3806^2 + 10205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-118627661 is a prime.

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 (118627961) 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, 54206 + ... + 56351.

It is an arithmetic number, because the mean of its divisors is an integer number (15754515).

Almost surely, 2^118627661 is an apocalyptic number.

It is an amenable number.

118627661 is a deficient number, since it is larger than the sum of its proper divisors (7408459).

118627661 is a wasteful number, since it uses less digits than its factorization.

118627661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110623.

The product of its digits is 24192, while the sum is 38.

The square root of 118627661 is about 10891.6326140758. The cubic root of 118627661 is about 491.3549351853.

The spelling of 118627661 in words is "one hundred eighteen million, six hundred twenty-seven thousand, six hundred sixty-one".