2231325 has 36 divisors (see below), whose sum is σ = 4100928. Its totient is φ = 1159200.

The previous prime is 2231311. The next prime is 2231329. The reversal of 2231325 is 5231322.

It is not a de Polignac number, because 2231325 - 2⁴ = 2231309 is a prime.

It is a super-3 number, since 3×2231325³ = 33328038074872359375, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

2231325 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2231298 and 2231307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10470 + ... + 10680.

2^2231325 is an apocalyptic number.

2231325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2231325 is a deficient number, since it is larger than the sum of its proper divisors (1869603).

2231325 is a wasteful number, since it uses less digits than its factorization.

2231325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 266 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 2231325 is about 1493.7620292403. The cubic root of 2231325 is about 130.6735261508.

Adding to 2231325 its reverse (5231322), we get a palindrome (7462647).

It can be divided in two parts, 2231 and 325, that added together give a triangular number (2556 = T₇₁).

The spelling of 2231325 in words is "two million, two hundred thirty-one thousand, three hundred twenty-five".