201451224 has 128 divisors (see below), whose sum is σ = 604800000. Its totient is φ = 55240704.

The previous prime is 201451223. The next prime is 201451231. The reversal of 201451224 is 422154102.

It is a self number, because there is not a number n which added to its sum of digits gives 201451224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201451223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99777 + ... + 101775.

It is an arithmetic number, because the mean of its divisors is an integer number (4725000).

Almost surely, 2^201451224 is an apocalyptic number.

201451224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201451224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400000).

201451224 is an abundant number, since it is smaller than the sum of its proper divisors (403348776).

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

201451224 is a wasteful number, since it uses less digits than its factorization.

201451224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2053 counting only the distinct ones).

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

The square root of 201451224 is about 14193.3514012724. The cubic root of 201451224 is about 586.2146084232.

The spelling of 201451224 in words is "two hundred one million, four hundred fifty-one thousand, two hundred twenty-four".