4165481 has 4 divisors (see below), whose sum is σ = 4190592. Its totient is φ = 4140372.

The previous prime is 4165463. The next prime is 4165489. The reversal of 4165481 is 1845614.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1845614 = 2 ⋅922807.

It is a cyclic number.

It is not a de Polignac number, because 4165481 - 2¹⁸ = 3903337 is a prime.

It is a super-2 number, since 2×4165481² = 34702463922722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4165489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12305 + ... + 12638.

It is an arithmetic number, because the mean of its divisors is an integer number (1047648).

Almost surely, 2^4165481 is an apocalyptic number.

It is an amenable number.

4165481 is a deficient number, since it is larger than the sum of its proper divisors (25111).

4165481 is a wasteful number, since it uses less digits than its factorization.

4165481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25110.

The product of its digits is 3840, while the sum is 29.

The square root of 4165481 is about 2040.9510038215. The cubic root of 4165481 is about 160.8996326719.

The spelling of 4165481 in words is "four million, one hundred sixty-five thousand, four hundred eighty-one".