201099294 has 128 divisors (see below), whose sum is σ = 513884160. Its totient is φ = 57736800.

The previous prime is 201099257. The next prime is 201099313. The reversal of 201099294 is 492990102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1233657 + ... + 1233819.

It is an arithmetic number, because the mean of its divisors is an integer number (4014720).

Almost surely, 2^201099294 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201099294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256942080).

201099294 is an abundant number, since it is smaller than the sum of its proper divisors (312784866).

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

201099294 is a wasteful number, since it uses less digits than its factorization.

201099294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 201099294 is about 14180.9482757677. The cubic root of 201099294 is about 585.8730422662.

It can be divided in two parts, 20109 and 9294, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 201099294 in words is "two hundred one million, ninety-nine thousand, two hundred ninety-four".