201244512 has 48 divisors (see below), whose sum is σ = 603735552. Its totient is φ = 57498240.

The previous prime is 201244507. The next prime is 201244559. The reversal of 201244512 is 215442102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×201244512² = 80998707220236288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149064 + ... + 150407.

It is an arithmetic number, because the mean of its divisors is an integer number (12577824).

Almost surely, 2^201244512 is an apocalyptic number.

It is an amenable number.

201244512 is an abundant number, since it is smaller than the sum of its proper divisors (402491040).

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

201244512 is a wasteful number, since it uses less digits than its factorization.

201244512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299491 (or 299483 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 201244512 is about 14186.0675312082. The cubic root of 201244512 is about 586.0140320542.

Adding to 201244512 its reverse (215442102), we get a palindrome (416686614).

The spelling of 201244512 in words is "two hundred one million, two hundred forty-four thousand, five hundred twelve".