2240531 has 2 divisors, whose sum is σ = 2240532. Its totient is φ = 2240530.

The previous prime is 2240507. The next prime is 2240533. The reversal of 2240531 is 1350422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2240531 - 2¹⁴ = 2224147 is a prime.

It is a super-2 number, since 2×2240531² = 10039958323922, which contains 22 as substring.

Together with 2240533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2240533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120265 + 1120266.

It is an arithmetic number, because the mean of its divisors is an integer number (1120266).

2^2240531 is an apocalyptic number.

2240531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240531 is an equidigital number, since it uses as much as digits as its factorization.

2240531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2240531 is about 1496.8403388471. The cubic root of 2240531 is about 130.8529904967.

Adding to 2240531 its reverse (1350422), we get a palindrome (3590953).

The spelling of 2240531 in words is "two million, two hundred forty thousand, five hundred thirty-one".