201465 has 36 divisors (see below), whose sum is σ = 394212. Its totient is φ = 95040.

The previous prime is 201451. The next prime is 201473. The reversal of 201465 is 564102.

It is a happy number.

201465 is a `hidden beast` number, since 201 + 465 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 69696 = 363^2 + 264^2 .

It is not a de Polignac number, because 201465 - 2⁴ = 201449 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201465.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5427 + ... + 5463.

2²⁰¹⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

201465 is a deficient number, since it is larger than the sum of its proper divisors (192747).

201465 is a wasteful number, since it uses less digits than its factorization.

201465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201465 is about 448.8485267883. The cubic root of 201465 is about 58.6227970646.

Adding to 201465 its reverse (564102), we get a palindrome (765567).

It can be divided in two parts, 201 and 465, that added together give a palindrome (666).

The spelling of 201465 in words is "two hundred one thousand, four hundred sixty-five".