4163481 has 30 divisors (see below), whose sum is σ = 7241850. Its totient is φ = 2376864.

The previous prime is 4163479. The next prime is 4163491. The reversal of 4163481 is 1843614.

It can be written as a sum of positive squares in only one way, i.e., 4064256 + 99225 = 2016^2 + 315^2 .

It is not a de Polignac number, because 4163481 - 2¹ = 4163479 is a prime.

It is a super-2 number, since 2×4163481² = 34669148074722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

4163481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4163461) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3445 + ... + 4493.

It is an arithmetic number, because the mean of its divisors is an integer number (241395).

Almost surely, 2^4163481 is an apocalyptic number.

It is an amenable number.

4163481 is a deficient number, since it is larger than the sum of its proper divisors (3078369).

4163481 is a wasteful number, since it uses less digits than its factorization.

4163481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1059 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 4163481 is about 2040.4609773284. The cubic root of 4163481 is about 160.8738772804.

The spelling of 4163481 in words is "four million, one hundred sixty-three thousand, four hundred eighty-one".