201242250 has 192 divisors, whose sum is σ = 609762816. Its totient is φ = 47472000.

The previous prime is 201242221. The next prime is 201242257. The reversal of 201242250 is 52242102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201242257) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1163164 + ... + 1163336.

It is an arithmetic number, because the mean of its divisors is an integer number (3175848).

Almost surely, 2^201242250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201242250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304881408).

201242250 is an abundant number, since it is smaller than the sum of its proper divisors (408520566).

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

201242250 is a wasteful number, since it uses less digits than its factorization.

201242250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 201242250 is about 14185.9878048728. The cubic root of 201242250 is about 586.0118364354.

Adding to 201242250 its reverse (52242102), we get a palindrome (253484352).

The spelling of 201242250 in words is "two hundred one million, two hundred forty-two thousand, two hundred fifty".