2421540133 has 2 divisors, whose sum is σ = 2421540134. Its totient is φ = 2421540132.

The previous prime is 2421540071. The next prime is 2421540137. The reversal of 2421540133 is 3310451242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2276530369 + 145009764 = 47713^2 + 12042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421540133 - 2⁹ = 2421539621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2421540098 and 2421540107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421540137) 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, 1210770066 + 1210770067.

It is an arithmetic number, because the mean of its divisors is an integer number (1210770067).

Almost surely, 2^2421540133 is an apocalyptic number.

It is an amenable number.

2421540133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421540133 is an equidigital number, since it uses as much as digits as its factorization.

2421540133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2421540133 is about 49209.1468428381. The cubic root of 2421540133 is about 1342.8594416843.

Adding to 2421540133 its reverse (3310451242), we get a palindrome (5731991375).

The spelling of 2421540133 in words is "two billion, four hundred twenty-one million, five hundred forty thousand, one hundred thirty-three".