4131225 has 72 divisors (see below), whose sum is σ = 8795072. Its totient is φ = 1814400.

The previous prime is 4131223. The next prime is 4131229. The reversal of 4131225 is 5221314.

4131225 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 4131225 - 2¹ = 4131223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4131198 and 4131207.

It is not an unprimeable number, because it can be changed into a prime (4131223) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67695 + ... + 67755.

Almost surely, 2^4131225 is an apocalyptic number.

4131225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4131225 is an abundant number, since it is smaller than the sum of its proper divisors (4663847).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4131225 is a wasteful number, since it uses less digits than its factorization.

4131225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 119 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 4131225 is about 2032.5415124912. The cubic root of 4131225 is about 160.4573503004.

Adding to 4131225 its reverse (5221314), we get a palindrome (9352539).

It can be divided in two parts, 4131 and 225, that added together give a square (4356 = 66²).

The spelling of 4131225 in words is "four million, one hundred thirty-one thousand, two hundred twenty-five".