201285801 has 12 divisors (see below), whose sum is σ = 291223920. Its totient is φ = 133970040.

The previous prime is 201285779. The next prime is 201285803. The reversal of 201285801 is 108582102.

It is not a de Polignac number, because 201285801 - 2⁹ = 201285289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201285803) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12495 + ... + 23636.

It is an arithmetic number, because the mean of its divisors is an integer number (24268660).

Almost surely, 2^201285801 is an apocalyptic number.

It is an amenable number.

201285801 is a deficient number, since it is larger than the sum of its proper divisors (89938119).

201285801 is a wasteful number, since it uses less digits than its factorization.

201285801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36756 (or 36753 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 201285801 is about 14187.5227224488. The cubic root of 201285801 is about 586.0541064867.

It can be divided in two parts, 20 and 1285801, that added together give a palindrome (1285821).

The spelling of 201285801 in words is "two hundred one million, two hundred eighty-five thousand, eight hundred one".