245315020133 has 2 divisors, whose sum is σ = 245315020134. Its totient is φ = 245315020132.

The previous prime is 245315020079. The next prime is 245315020163. The reversal of 245315020133 is 331020513542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162620240644 + 82694779489 = 403262^2 + 287567^2 .

It is a cyclic number.

It is not a de Polignac number, because 245315020133 - 2²² = 245310825829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245315020096 and 245315020105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245315020163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122657510066 + 122657510067.

It is an arithmetic number, because the mean of its divisors is an integer number (122657510067).

Almost surely, 2^245315020133 is an apocalyptic number.

It is an amenable number.

245315020133 is a deficient number, since it is larger than the sum of its proper divisors (1).

245315020133 is an equidigital number, since it uses as much as digits as its factorization.

245315020133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 245315020133 its reverse (331020513542), we get a palindrome (576335533675).

The spelling of 245315020133 in words is "two hundred forty-five billion, three hundred fifteen million, twenty thousand, one hundred thirty-three".