201201144 has 64 divisors (see below), whose sum is σ = 515082240. Its totient is φ = 65470080.

The previous prime is 201201131. The next prime is 201201167. The reversal of 201201144 is 441102102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466609 + ... + 467039.

It is an arithmetic number, because the mean of its divisors is an integer number (8048160).

Almost surely, 2^201201144 is an apocalyptic number.

201201144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201201144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257541120).

201201144 is an abundant number, since it is smaller than the sum of its proper divisors (313881096).

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

201201144 is a wasteful number, since it uses less digits than its factorization.

201201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 201201144 is about 14184.5389068521. The cubic root of 201201144 is about 585.9719338754.

Adding to 201201144 its reverse (441102102), we get a palindrome (642303246).

The spelling of 201201144 in words is "two hundred one million, two hundred one thousand, one hundred forty-four".