245220535093 has 2 divisors, whose sum is σ = 245220535094. Its totient is φ = 245220535092.

The previous prime is 245220534997. The next prime is 245220535121. The reversal of 245220535093 is 390535022542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158497941924 + 86722593169 = 398118^2 + 294487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245220535093 is a prime.

It is a super-2 number, since 2×245220535093² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245220535993) 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, 122610267546 + 122610267547.

It is an arithmetic number, because the mean of its divisors is an integer number (122610267547).

Almost surely, 2^245220535093 is an apocalyptic number.

It is an amenable number.

245220535093 is a deficient number, since it is larger than the sum of its proper divisors (1).

245220535093 is an equidigital number, since it uses as much as digits as its factorization.

245220535093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 245220535093 in words is "two hundred forty-five billion, two hundred twenty million, five hundred thirty-five thousand, ninety-three".