201012193 has 4 divisors (see below), whose sum is σ = 201122068. Its totient is φ = 200902320.

The previous prime is 201012187. The next prime is 201012221. The reversal of 201012193 is 391210102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54287424 + 146724769 = 7368^2 + 12113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201012193.

It is not an unprimeable number, because it can be changed into a prime (201012113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52146 + ... + 55867.

It is an arithmetic number, because the mean of its divisors is an integer number (50280517).

Almost surely, 2^201012193 is an apocalyptic number.

It is an amenable number.

201012193 is a deficient number, since it is larger than the sum of its proper divisors (109875).

201012193 is a wasteful number, since it uses less digits than its factorization.

201012193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109874.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 201012193 is about 14177.8768861914. The cubic root of 201012193 is about 585.7884447587.

Adding to 201012193 its reverse (391210102), we get a palindrome (592222295).

The spelling of 201012193 in words is "two hundred one million, twelve thousand, one hundred ninety-three".