201444134 has 4 divisors (see below), whose sum is σ = 302166204. Its totient is φ = 100722066.

The previous prime is 201444127. The next prime is 201444163. The reversal of 201444134 is 431444102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50361032 + ... + 50361035.

It is an arithmetic number, because the mean of its divisors is an integer number (75541551).

Almost surely, 2^201444134 is an apocalyptic number.

201444134 is a deficient number, since it is larger than the sum of its proper divisors (100722070).

201444134 is a wasteful number, since it uses less digits than its factorization.

201444134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100722069.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 201444134 is about 14193.1016342447. The cubic root of 201444134 is about 586.2077311417.

Adding to 201444134 its reverse (431444102), we get a palindrome (632888236).

The spelling of 201444134 in words is "two hundred one million, four hundred forty-four thousand, one hundred thirty-four".