201310144 has 28 divisors (see below), whose sum is σ = 456543664. Its totient is φ = 86275584.

The previous prime is 201310139. The next prime is 201310159. The reversal of 201310144 is 441013102.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224229 + ... + 225124.

Almost surely, 2^201310144 is an apocalyptic number.

It is an amenable number.

201310144 is an abundant number, since it is smaller than the sum of its proper divisors (255233520).

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

201310144 is an equidigital number, since it uses as much as digits as its factorization.

201310144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449372 (or 449362 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201310144 is about 14188.3805982219. The cubic root of 201310144 is about 586.0777308390.

Adding to 201310144 its reverse (441013102), we get a palindrome (642323246).

The spelling of 201310144 in words is "two hundred one million, three hundred ten thousand, one hundred forty-four".