201251850 has 48 divisors (see below), whose sum is σ = 500325120. Its totient is φ = 53536000.

The previous prime is 201251849. The next prime is 201251879. The reversal of 201251850 is 58152102.

It is a self number, because there is not a number n which added to its sum of digits gives 201251850.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70450 + ... + 73250.

It is an arithmetic number, because the mean of its divisors is an integer number (10423440).

Almost surely, 2^201251850 is an apocalyptic number.

201251850 is an abundant number, since it is smaller than the sum of its proper divisors (299073270).

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

201251850 is a wasteful number, since it uses less digits than its factorization.

201251850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 201251850 is about 14186.3261628936. The cubic root of 201251850 is about 586.0211545982.

The spelling of 201251850 in words is "two hundred one million, two hundred fifty-one thousand, eight hundred fifty".