201564005 has 16 divisors (see below), whose sum is σ = 248033280. Its totient is φ = 157163328.

The previous prime is 201563993. The next prime is 201564017. The reversal of 201564005 is 500465102.

201564005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201563993) and next prime (201564017).

It is a cyclic number.

It is not a de Polignac number, because 201564005 - 2¹² = 201559909 is a prime.

It is a super-2 number, since 2×201564005² = 81256096223280050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156956 + ... + 158234.

It is an arithmetic number, because the mean of its divisors is an integer number (15502080).

Almost surely, 2^201564005 is an apocalyptic number.

It is an amenable number.

201564005 is a deficient number, since it is larger than the sum of its proper divisors (46469275).

201564005 is a wasteful number, since it uses less digits than its factorization.

201564005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 201564005 is about 14197.3238675463. The cubic root of 201564005 is about 586.3239840072.

The spelling of 201564005 in words is "two hundred one million, five hundred sixty-four thousand, five".