201251286 has 12 divisors (see below), whose sum is σ = 436044492. Its totient is φ = 67083756.

The previous prime is 201251269. The next prime is 201251293. The reversal of 201251286 is 682152102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5590296 + ... + 5590331.

It is an arithmetic number, because the mean of its divisors is an integer number (36337041).

Almost surely, 2^201251286 is an apocalyptic number.

201251286 is an abundant number, since it is smaller than the sum of its proper divisors (234793206).

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

201251286 is a wasteful number, since it uses less digits than its factorization.

201251286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180635 (or 11180632 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 201251286 is about 14186.3062845830. The cubic root of 201251286 is about 586.0206071644.

The spelling of 201251286 in words is "two hundred one million, two hundred fifty-one thousand, two hundred eighty-six".