2420531 has 2 divisors, whose sum is σ = 2420532. Its totient is φ = 2420530.

The previous prime is 2420519. The next prime is 2420549. The reversal of 2420531 is 1350242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2420531 - 2¹⁰ = 2419507 is a prime.

It is a super-2 number, since 2×2420531² = 11717940643922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2422531) 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 as a sum of consecutive naturals, namely, 1210265 + 1210266.

It is an arithmetic number, because the mean of its divisors is an integer number (1210266).

2^2420531 is an apocalyptic number.

2420531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420531 is an equidigital number, since it uses as much as digits as its factorization.

2420531 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 2420531 is about 1555.8055791133. The cubic root of 2420531 is about 134.2672878315.

Adding to 2420531 its reverse (1350242), we get a palindrome (3770773).

The spelling of 2420531 in words is "two million, four hundred twenty thousand, five hundred thirty-one".