245364481 has 2 divisors, whose sum is σ = 245364482. Its totient is φ = 245364480.

The previous prime is 245364479. The next prime is 245364491. The reversal of 245364481 is 184463542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245235600 + 128881 = 15660^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 245364481 - 2¹ = 245364479 is a prime.

It is a super-2 number, since 2×245364481² = 120407457072798722, which contains 22 as substring.

Together with 245364479, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 245364481.

It is not a weakly prime, because it can be changed into another prime (245364491) 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, 122682240 + 122682241.

It is an arithmetic number, because the mean of its divisors is an integer number (122682241).

Almost surely, 2^245364481 is an apocalyptic number.

It is an amenable number.

245364481 is a deficient number, since it is larger than the sum of its proper divisors (1).

245364481 is an equidigital number, since it uses as much as digits as its factorization.

245364481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 37.

The square root of 245364481 is about 15664.1144339538. The cubic root of 245364481 is about 626.0426168729.

The spelling of 245364481 in words is "two hundred forty-five million, three hundred sixty-four thousand, four hundred eighty-one".