201845018 has 32 divisors (see below), whose sum is σ = 326462400. Its totient is φ = 93308544.

The previous prime is 201845011. The next prime is 201845023. The reversal of 201845018 is 810548102.

201845018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201845018² = 81482822582840648, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201845011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441446 + ... + 441902.

It is an arithmetic number, because the mean of its divisors is an integer number (10201950).

Almost surely, 2^201845018 is an apocalyptic number.

201845018 is a deficient number, since it is larger than the sum of its proper divisors (124617382).

201845018 is a wasteful number, since it uses less digits than its factorization.

201845018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 201845018 is about 14207.2171096242. The cubic root of 201845018 is about 586.5963344721.

The spelling of 201845018 in words is "two hundred one million, eight hundred forty-five thousand, eighteen".