245153533481 has 2 divisors, whose sum is σ = 245153533482. Its totient is φ = 245153533480.

The previous prime is 245153533459. The next prime is 245153533483. The reversal of 245153533481 is 184335351542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245132921881 + 20611600 = 495109^2 + 4540^2 .

It is a cyclic number.

It is not a de Polignac number, because 245153533481 - 2¹⁴ = 245153517097 is a prime.

It is a super-4 number, since 4×245153533481⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 245153533483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245153533483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122576766740 + 122576766741.

It is an arithmetic number, because the mean of its divisors is an integer number (122576766741).

Almost surely, 2^245153533481 is an apocalyptic number.

It is an amenable number.

245153533481 is a deficient number, since it is larger than the sum of its proper divisors (1).

245153533481 is an equidigital number, since it uses as much as digits as its factorization.

245153533481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 44.

The spelling of 245153533481 in words is "two hundred forty-five billion, one hundred fifty-three million, five hundred thirty-three thousand, four hundred eighty-one".