201250218 has 16 divisors (see below), whose sum is σ = 433462176. Its totient is φ = 61923120.

The previous prime is 201250187. The next prime is 201250229. The reversal of 201250218 is 812052102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201250194 and 201250203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289988 + ... + 1290143.

It is an arithmetic number, because the mean of its divisors is an integer number (27091386).

Almost surely, 2^201250218 is an apocalyptic number.

201250218 is an abundant number, since it is smaller than the sum of its proper divisors (232211958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201250218 is a wasteful number, since it uses less digits than its factorization.

201250218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580149.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 201250218 is about 14186.2686425994. The cubic root of 201250218 is about 586.0195705315.

The spelling of 201250218 in words is "two hundred one million, two hundred fifty thousand, two hundred eighteen".