201140144 has 20 divisors (see below), whose sum is σ = 392047824. Its totient is φ = 99966528.

The previous prime is 201140131. The next prime is 201140171. The reversal of 201140144 is 441041102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34967 + ... + 40310.

Almost surely, 2^201140144 is an apocalyptic number.

It is an amenable number.

201140144 is a deficient number, since it is larger than the sum of its proper divisors (190907680).

201140144 is a wasteful number, since it uses less digits than its factorization.

201140144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75452 (or 75446 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 201140144 is about 14182.3885153383. The cubic root of 201140144 is about 585.9127097243.

Adding to 201140144 its reverse (441041102), we get a palindrome (642181246).

The spelling of 201140144 in words is "two hundred one million, one hundred forty thousand, one hundred forty-four".