118159187 has 4 divisors (see below), whose sum is σ = 119777880. Its totient is φ = 116540496.

The previous prime is 118159183. The next prime is 118159199. The reversal of 118159187 is 781951811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 781951811 = 14713 ⋅53147.

It is a cyclic number.

It is not a de Polignac number, because 118159187 - 2² = 118159183 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (118159183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809237 + ... + 809382.

It is an arithmetic number, because the mean of its divisors is an integer number (29944470).

Almost surely, 2^118159187 is an apocalyptic number.

118159187 is a deficient number, since it is larger than the sum of its proper divisors (1618693).

118159187 is an equidigital number, since it uses as much as digits as its factorization.

118159187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618692.

The product of its digits is 20160, while the sum is 41.

The square root of 118159187 is about 10870.1051972831. The cubic root of 118159187 is about 490.7072765420.

The spelling of 118159187 in words is "one hundred eighteen million, one hundred fifty-nine thousand, one hundred eighty-seven".