201011864 has 16 divisors (see below), whose sum is σ = 378302400. Its totient is φ = 100131232.

The previous prime is 201011827. The next prime is 201011873. The reversal of 201011864 is 468110102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44552 + ... + 48855.

It is an arithmetic number, because the mean of its divisors is an integer number (23643900).

Almost surely, 2^201011864 is an apocalyptic number.

It is an amenable number.

201011864 is a deficient number, since it is larger than the sum of its proper divisors (177290536).

201011864 is a wasteful number, since it uses less digits than its factorization.

201011864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93682 (or 93678 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 201011864 is about 14177.8652836032. The cubic root of 201011864 is about 585.7881251686.

Adding to 201011864 its reverse (468110102), we get a palindrome (669121966).

The spelling of 201011864 in words is "two hundred one million, eleven thousand, eight hundred sixty-four".