118159643 has 8 divisors (see below), whose sum is σ = 136351488. Its totient is φ = 100295784.

The previous prime is 118159621. The next prime is 118159661. The reversal of 118159643 is 346951811.

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 118159643 - 2²⁰ = 117111067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118159597 and 118159606.

It is not an unprimeable number, because it can be changed into a prime (118159603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81221 + ... + 82662.

It is an arithmetic number, because the mean of its divisors is an integer number (17043936).

Almost surely, 2^118159643 is an apocalyptic number.

118159643 is a deficient number, since it is larger than the sum of its proper divisors (18191845).

118159643 is a wasteful number, since it uses less digits than its factorization.

118159643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163993.

The product of its digits is 25920, while the sum is 38.

The square root of 118159643 is about 10870.1261722208. The cubic root of 118159643 is about 490.7079077872.

The spelling of 118159643 in words is "one hundred eighteen million, one hundred fifty-nine thousand, six hundred forty-three".