201455144 has 16 divisors (see below), whose sum is σ = 412067520. Its totient is φ = 91570480.

The previous prime is 201455101. The next prime is 201455153. The reversal of 201455144 is 441554102.

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 in 3 ways as a sum of consecutive naturals, for example, 1144544 + ... + 1144719.

It is an arithmetic number, because the mean of its divisors is an integer number (25754220).

Almost surely, 2^201455144 is an apocalyptic number.

It is an amenable number.

201455144 is an abundant number, since it is smaller than the sum of its proper divisors (210612376).

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

201455144 is a wasteful number, since it uses less digits than its factorization.

201455144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289280 (or 2289276 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 201455144 is about 14193.4894934262. The cubic root of 201455144 is about 586.2184107437.

The spelling of 201455144 in words is "two hundred one million, four hundred fifty-five thousand, one hundred forty-four".