201444739 has 4 divisors (see below), whose sum is σ = 201685680. Its totient is φ = 201203800.

The previous prime is 201444709. The next prime is 201444743. The reversal of 201444739 is 937444102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201444739 - 2⁹ = 201444227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201444709) 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 3 ways as a sum of consecutive naturals, for example, 119212 + ... + 120889.

It is an arithmetic number, because the mean of its divisors is an integer number (50421420).

Almost surely, 2^201444739 is an apocalyptic number.

201444739 is a deficient number, since it is larger than the sum of its proper divisors (240941).

201444739 is an equidigital number, since it uses as much as digits as its factorization.

201444739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240940.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 201444739 is about 14193.1229473996. The cubic root of 201444739 is about 586.2083179964.

The spelling of 201444739 in words is "two hundred one million, four hundred forty-four thousand, seven hundred thirty-nine".