201144672 has 36 divisors (see below), whose sum is σ = 572005980. Its totient is φ = 67048128.

The previous prime is 201144641. The next prime is 201144673. The reversal of 201144672 is 276441102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201144673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348922 + ... + 349497.

It is an arithmetic number, because the mean of its divisors is an integer number (15889055).

Almost surely, 2^201144672 is an apocalyptic number.

It is an amenable number.

201144672 is an abundant number, since it is smaller than the sum of its proper divisors (370861308).

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

201144672 is a wasteful number, since it uses less digits than its factorization.

201144672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698435 (or 698424 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 201144672 is about 14182.5481490457. The cubic root of 201144672 is about 585.9171063153.

Adding to 201144672 its reverse (276441102), we get a palindrome (477585774).

The spelling of 201144672 in words is "two hundred one million, one hundred forty-four thousand, six hundred seventy-two".