201251238 has 16 divisors (see below), whose sum is σ = 402652080. Its totient is φ = 67058816.

The previous prime is 201251233. The next prime is 201251257. The reversal of 201251238 is 832152102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201251231) by changing a digit.

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, 19306 + ... + 27842.

It is an arithmetic number, because the mean of its divisors is an integer number (25165755).

Almost surely, 2^201251238 is an apocalyptic number.

201251238 is an abundant number, since it is smaller than the sum of its proper divisors (201400842).

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

201251238 is a wasteful number, since it uses less digits than its factorization.

201251238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12471.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 201251238 is about 14186.3045928106. The cubic root of 201251238 is about 586.0205605742.

The spelling of 201251238 in words is "two hundred one million, two hundred fifty-one thousand, two hundred thirty-eight".