118729661 has 8 divisors (see below), whose sum is σ = 122394240. Its totient is φ = 115112608.

The previous prime is 118729643. The next prime is 118729669. The reversal of 118729661 is 166927811.

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

It is a cyclic number.

It is not a de Polignac number, because 118729661 - 2¹⁴ = 118713277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118729669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6776 + ... + 16833.

It is an arithmetic number, because the mean of its divisors is an integer number (15299280).

Almost surely, 2^118729661 is an apocalyptic number.

It is an amenable number.

118729661 is a deficient number, since it is larger than the sum of its proper divisors (3664579).

118729661 is a wasteful number, since it uses less digits than its factorization.

118729661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23763.

The product of its digits is 36288, while the sum is 41.

The square root of 118729661 is about 10896.3141015666. The cubic root of 118729661 is about 491.4957226020.

The spelling of 118729661 in words is "one hundred eighteen million, seven hundred twenty-nine thousand, six hundred sixty-one".