118380851 has 4 divisors (see below), whose sum is σ = 118516104. Its totient is φ = 118245600.

The previous prime is 118380803. The next prime is 118380883. The reversal of 118380851 is 158083811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158083811 = 5981 ⋅26431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118380851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118380751) 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, 66305 + ... + 68066.

It is an arithmetic number, because the mean of its divisors is an integer number (29629026).

Almost surely, 2^118380851 is an apocalyptic number.

118380851 is a deficient number, since it is larger than the sum of its proper divisors (135253).

118380851 is an equidigital number, since it uses as much as digits as its factorization.

118380851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135252.

The product of its (nonzero) digits is 7680, while the sum is 35.

The square root of 118380851 is about 10880.2964573581. The cubic root of 118380851 is about 491.0139368288.

The spelling of 118380851 in words is "one hundred eighteen million, three hundred eighty thousand, eight hundred fifty-one".