201332144 has 40 divisors (see below), whose sum is σ = 426035232. Its totient is φ = 91607040.

The previous prime is 201332141. The next prime is 201332171. The reversal of 201332144 is 441233102.

It is not an unprimeable number, because it can be changed into a prime (201332141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7952 + ... + 21584.

Almost surely, 2^201332144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201332144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213017616).

201332144 is an abundant number, since it is smaller than the sum of its proper divisors (224703088).

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

201332144 is a wasteful number, since it uses less digits than its factorization.

201332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13725 (or 13719 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 201332144 is about 14189.1558593174. The cubic root of 201332144 is about 586.0990797224.

Adding to 201332144 its reverse (441233102), we get a palindrome (642565246).

The spelling of 201332144 in words is "two hundred one million, three hundred thirty-two thousand, one hundred forty-four".