4165903 has 4 divisors (see below), whose sum is σ = 4761040. Its totient is φ = 3570768.

The previous prime is 4165849. The next prime is 4165927. The reversal of 4165903 is 3095614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3095614 = 2 ⋅1547807.

It is a cyclic number.

It is not a de Polignac number, because 4165903 - 2²¹ = 2068751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4165933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297558 + ... + 297571.

It is an arithmetic number, because the mean of its divisors is an integer number (1190260).

Almost surely, 2^4165903 is an apocalyptic number.

4165903 is a deficient number, since it is larger than the sum of its proper divisors (595137).

4165903 is an equidigital number, since it uses as much as digits as its factorization.

4165903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595136.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 4165903 is about 2041.0543843808. The cubic root of 4165903 is about 160.9050660061.

The spelling of 4165903 in words is "four million, one hundred sixty-five thousand, nine hundred three".