201799136 has 48 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 78622080.

The previous prime is 201799127. The next prime is 201799177. The reversal of 201799136 is 631997102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201799136.

It is a congruent number.

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, 38486 + ... + 43413.

It is an arithmetic number, because the mean of its divisors is an integer number (10319400).

Almost surely, 2^201799136 is an apocalyptic number.

It is an amenable number.

201799136 is an abundant number, since it is smaller than the sum of its proper divisors (293532064).

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

201799136 is a wasteful number, since it uses less digits than its factorization.

201799136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81927 (or 81919 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 201799136 is about 14205.6022751589. The cubic root of 201799136 is about 586.5518841097.

The spelling of 201799136 in words is "two hundred one million, seven hundred ninety-nine thousand, one hundred thirty-six".