4131245 has 8 divisors (see below), whose sum is σ = 4969080. Its totient is φ = 3297280.

The previous prime is 4131241. The next prime is 4131293. The reversal of 4131245 is 5421314.

It can be written as a sum of positive squares in 4 ways, for example, as 1811716 + 2319529 = 1346^2 + 1523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4131245 - 2² = 4131241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4131241) 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 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (621135).

Almost surely, 2^4131245 is an apocalyptic number.

It is an amenable number.

4131245 is a deficient number, since it is larger than the sum of its proper divisors (837835).

4131245 is a wasteful number, since it uses less digits than its factorization.

4131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its digits is 480, while the sum is 20.

The square root of 4131245 is about 2032.5464324340. The cubic root of 4131245 is about 160.4576092343.

Adding to 4131245 its reverse (5421314), we get a palindrome (9552559).

The spelling of 4131245 in words is "four million, one hundred thirty-one thousand, two hundred forty-five".