4165257 has 4 divisors (see below), whose sum is σ = 5553680. Its totient is φ = 2776836.

The previous prime is 4165243. The next prime is 4165267. The reversal of 4165257 is 7525614.

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.

It is not a de Polignac number, because 4165257 - 2⁶ = 4165193 is a prime.

It is a D-number.

It is a Duffinian number.

4165257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4165267) 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, 694207 + ... + 694212.

It is an arithmetic number, because the mean of its divisors is an integer number (1388420).

Almost surely, 2^4165257 is an apocalyptic number.

It is an amenable number.

4165257 is a deficient number, since it is larger than the sum of its proper divisors (1388423).

4165257 is a wasteful number, since it uses less digits than its factorization.

4165257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388422.

The product of its digits is 8400, while the sum is 30.

The square root of 4165257 is about 2040.8961267051. The cubic root of 4165257 is about 160.8967484780.

The spelling of 4165257 in words is "four million, one hundred sixty-five thousand, two hundred fifty-seven".