201444131 has 8 divisors (see below), whose sum is σ = 231495264. Its totient is φ = 171711360.

The previous prime is 201444127. The next prime is 201444163. The reversal of 201444131 is 131444102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201444131 - 2² = 201444127 is a prime.

It is a super-2 number, since 2×201444131² = 81159475828690322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201444181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78230 + ... + 80763.

It is an arithmetic number, because the mean of its divisors is an integer number (28936908).

Almost surely, 2^201444131 is an apocalyptic number.

201444131 is a deficient number, since it is larger than the sum of its proper divisors (30051133).

201444131 is a wasteful number, since it uses less digits than its factorization.

201444131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159181.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 201444131 is about 14193.1015285596. The cubic root of 201444131 is about 586.2077282317.

Adding to 201444131 its reverse (131444102), we get a palindrome (332888233).

The spelling of 201444131 in words is "two hundred one million, four hundred forty-four thousand, one hundred thirty-one".