4231505 has 16 divisors (see below), whose sum is σ = 5294160. Its totient is φ = 3244032.

The previous prime is 4231483. The next prime is 4231537. The reversal of 4231505 is 5051324.

It can be written as a sum of positive squares in 8 ways, for example, as 421201 + 3810304 = 649^2 + 1952^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231505 - 2¹⁰ = 4230481 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16337 + ... + 16593.

It is an arithmetic number, because the mean of its divisors is an integer number (330885).

Almost surely, 2^4231505 is an apocalyptic number.

It is an amenable number.

4231505 is a deficient number, since it is larger than the sum of its proper divisors (1062655).

4231505 is a wasteful number, since it uses less digits than its factorization.

4231505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4231505 is about 2057.0622256023. The cubic root of 4231505 is about 161.7452812586.

Adding to 4231505 its reverse (5051324), we get a palindrome (9282829).

The spelling of 4231505 in words is "four million, two hundred thirty-one thousand, five hundred five".