245041202151481 has 2 divisors, whose sum is σ = 245041202151482. Its totient is φ = 245041202151480.

The previous prime is 245041202151479. The next prime is 245041202151511. The reversal of 245041202151481 is 184151202140542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178060334405625 + 66980867745856 = 13343925^2 + 8184184^2 .

It is a cyclic number.

It is not a de Polignac number, because 245041202151481 - 2¹ = 245041202151479 is a prime.

It is a super-2 number, since 2×245041202151481² (a number of 30 digits) contains 22 as substring.

Together with 245041202151479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (245041202151881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122520601075740 + 122520601075741.

It is an arithmetic number, because the mean of its divisors is an integer number (122520601075741).

Almost surely, 2^{245041202151481} is an apocalyptic number.

It is an amenable number.

245041202151481 is a deficient number, since it is larger than the sum of its proper divisors (1).

245041202151481 is an equidigital number, since it uses as much as digits as its factorization.

245041202151481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 245041202151481 in words is "two hundred forty-five trillion, forty-one billion, two hundred two million, one hundred fifty-one thousand, four hundred eighty-one".