2165463 has 6 divisors (see below), whose sum is σ = 3127904. Its totient is φ = 1443636.

The previous prime is 2165461. The next prime is 2165467. The reversal of 2165463 is 3645612.

2165463 is a `hidden beast` number, since 2 + 1 + 654 + 6 + 3 = 666.

It is not a de Polignac number, because 2165463 - 2¹ = 2165461 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 6⁴ + 5³ + 4³ + 6⁵ + 3¹⁰ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120295 + ... + 120312.

2^2165463 is an apocalyptic number.

2165463 is a deficient number, since it is larger than the sum of its proper divisors (962441).

2165463 is a wasteful number, since it uses less digits than its factorization.

2165463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240613 (or 240610 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2165463 is about 1471.5512223501. The cubic root of 2165463 is about 129.3749681439.

It can be divided in two parts, 2165 and 463, that added together give a triangular number (2628 = T₇₂).

The spelling of 2165463 in words is "two million, one hundred sixty-five thousand, four hundred sixty-three".