201118290 has 16 divisors (see below), whose sum is σ = 482683968. Its totient is φ = 53631536.

The previous prime is 201118283. The next prime is 201118301. The reversal of 201118290 is 92811102.

201118290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201118290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3351942 + ... + 3352001.

It is an arithmetic number, because the mean of its divisors is an integer number (30167748).

Almost surely, 2^201118290 is an apocalyptic number.

201118290 is an abundant number, since it is smaller than the sum of its proper divisors (281565678).

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

201118290 is a wasteful number, since it uses less digits than its factorization.

201118290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703953.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 201118290 is about 14181.6180318044. The cubic root of 201118290 is about 585.8914890306.

Adding to 201118290 its reverse (92811102), we get a palindrome (293929392).

It can be divided in two parts, 2011 and 18290, that added together give a triangular number (20301 = T₂₀₁).

The spelling of 201118290 in words is "two hundred one million, one hundred eighteen thousand, two hundred ninety".