241621453 has 2 divisors, whose sum is σ = 241621454. Its totient is φ = 241621452.

The previous prime is 241621451. The next prime is 241621469. The reversal of 241621453 is 354126142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168039369 + 73582084 = 12963^2 + 8578^2 .

It is a cyclic number.

It is not a de Polignac number, because 241621453 - 2¹ = 241621451 is a prime.

Together with 241621451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241621451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120810726 + 120810727.

It is an arithmetic number, because the mean of its divisors is an integer number (120810727).

Almost surely, 2^241621453 is an apocalyptic number.

It is an amenable number.

241621453 is a deficient number, since it is larger than the sum of its proper divisors (1).

241621453 is an equidigital number, since it uses as much as digits as its factorization.

241621453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 241621453 is about 15544.1774629602. The cubic root of 241621453 is about 622.8428699896.

Adding to 241621453 its reverse (354126142), we get a palindrome (595747595).

The spelling of 241621453 in words is "two hundred forty-one million, six hundred twenty-one thousand, four hundred fifty-three".