245212411181 has 2 divisors, whose sum is σ = 245212411182. Its totient is φ = 245212411180.

The previous prime is 245212411153. The next prime is 245212411207. The reversal of 245212411181 is 181114212542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178514700100 + 66697711081 = 422510^2 + 258259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245212411181 is a prime.

It is a super-2 number, since 2×245212411181² (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 (245212411981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122606205590 + 122606205591.

It is an arithmetic number, because the mean of its divisors is an integer number (122606205591).

Almost surely, 2^245212411181 is an apocalyptic number.

It is an amenable number.

245212411181 is a deficient number, since it is larger than the sum of its proper divisors (1).

245212411181 is an equidigital number, since it uses as much as digits as its factorization.

245212411181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 32.

The spelling of 245212411181 in words is "two hundred forty-five billion, two hundred twelve million, four hundred eleven thousand, one hundred eighty-one".