245727222157 has 2 divisors, whose sum is σ = 245727222158. Its totient is φ = 245727222156.

The previous prime is 245727222151. The next prime is 245727222271. The reversal of 245727222157 is 751222727542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234206634601 + 11520587556 = 483949^2 + 107334^2 .

It is a cyclic number.

It is not a de Polignac number, because 245727222157 - 2³ = 245727222149 is a prime.

It is a super-3 number, since 3×245727222157³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245727222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122863611078 + 122863611079.

It is an arithmetic number, because the mean of its divisors is an integer number (122863611079).

Almost surely, 2^245727222157 is an apocalyptic number.

It is an amenable number.

245727222157 is a deficient number, since it is larger than the sum of its proper divisors (1).

245727222157 is an equidigital number, since it uses as much as digits as its factorization.

245727222157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1097600, while the sum is 46.

Adding to 245727222157 its reverse (751222727542), we get a palindrome (996949949699).

The spelling of 245727222157 in words is "two hundred forty-five billion, seven hundred twenty-seven million, two hundred twenty-two thousand, one hundred fifty-seven".