201162565 has 16 divisors (see below), whose sum is σ = 253416960. Its totient is φ = 153092160.

The previous prime is 201162551. The next prime is 201162569. The reversal of 201162565 is 565261102.

It is a de Polignac number, because none of the positive numbers 2^k-201162565 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201162569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1854 + ... + 20143.

It is an arithmetic number, because the mean of its divisors is an integer number (15838560).

Almost surely, 2^201162565 is an apocalyptic number.

It is an amenable number.

201162565 is a deficient number, since it is larger than the sum of its proper divisors (52254395).

201162565 is a wasteful number, since it uses less digits than its factorization.

201162565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22092.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 201162565 is about 14183.1789454974. The cubic root of 201162565 is about 585.9344793895.

The spelling of 201162565 in words is "two hundred one million, one hundred sixty-two thousand, five hundred sixty-five".