118018451 has 4 divisors (see below), whose sum is σ = 123149712. Its totient is φ = 112887192.

The previous prime is 118018421. The next prime is 118018463. The reversal of 118018451 is 154810811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118018451 - 2¹⁴ = 118002067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118018421) 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, 2565596 + ... + 2565641.

It is an arithmetic number, because the mean of its divisors is an integer number (30787428).

Almost surely, 2^118018451 is an apocalyptic number.

118018451 is a deficient number, since it is larger than the sum of its proper divisors (5131261).

118018451 is an equidigital number, since it uses as much as digits as its factorization.

118018451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131260.

The product of its (nonzero) digits is 1280, while the sum is 29.

The square root of 118018451 is about 10863.6297341174. The cubic root of 118018451 is about 490.5123767132.

The spelling of 118018451 in words is "one hundred eighteen million, eighteen thousand, four hundred fifty-one".