2241531 has 6 divisors (see below), whose sum is σ = 3237780. Its totient is φ = 1494348.

The previous prime is 2241527. The next prime is 2241539. The reversal of 2241531 is 1351422.

It is not a de Polignac number, because 2241531 - 2² = 2241527 is a prime.

It is a super-2 number, since 2×2241531² = 10048922447922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2241539) 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 5 ways as a sum of consecutive naturals, for example, 124521 + ... + 124538.

It is an arithmetic number, because the mean of its divisors is an integer number (539630).

2^2241531 is an apocalyptic number.

2241531 is a deficient number, since it is larger than the sum of its proper divisors (996249).

2241531 is a wasteful number, since it uses less digits than its factorization.

2241531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249065 (or 249062 counting only the distinct ones).

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

The square root of 2241531 is about 1497.1743385458. The cubic root of 2241531 is about 130.8724551575.

Adding to 2241531 its reverse (1351422), we get a palindrome (3592953).

It can be divided in two parts, 2241 and 531, that added together give a palindrome (2772).

The spelling of 2241531 in words is "two million, two hundred forty-one thousand, five hundred thirty-one".