201204605 has 16 divisors (see below), whose sum is σ = 292170240. Its totient is φ = 129852672.

The previous prime is 201204599. The next prime is 201204613. The reversal of 201204605 is 506402102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201204605 - 2¹⁰ = 201203581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168485 + ... + 169674.

It is an arithmetic number, because the mean of its divisors is an integer number (18260640).

Almost surely, 2^201204605 is an apocalyptic number.

It is an amenable number.

201204605 is a deficient number, since it is larger than the sum of its proper divisors (90965635).

201204605 is a wasteful number, since it uses less digits than its factorization.

201204605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338188.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 201204605 is about 14184.6609053583. The cubic root of 201204605 is about 585.9752937589.

Adding to 201204605 its reverse (506402102), we get a palindrome (707606707).

The spelling of 201204605 in words is "two hundred one million, two hundred four thousand, six hundred five".