2531441 has 6 divisors (see below), whose sum is σ = 2782626. Its totient is φ = 2301200.

The previous prime is 2531423. The next prime is 2531443. The reversal of 2531441 is 1441352.

It can be written as a sum of positive squares in only one way, i.e., 2337841 + 193600 = 1529^2 + 440^2 .

It is not a de Polignac number, because 2531441 - 2⁶ = 2531377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2531443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10340 + ... + 10581.

It is an arithmetic number, because the mean of its divisors is an integer number (463771).

2^2531441 is an apocalyptic number.

It is an amenable number.

2531441 is a deficient number, since it is larger than the sum of its proper divisors (251185).

2531441 is a wasteful number, since it uses less digits than its factorization.

2531441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20943 (or 20932 counting only the distinct ones).

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

The square root of 2531441 is about 1591.0502820464. The cubic root of 2531441 is about 136.2874722284.

Adding to 2531441 its reverse (1441352), we get a palindrome (3972793).

The spelling of 2531441 in words is "two million, five hundred thirty-one thousand, four hundred forty-one".