245431412273 has 2 divisors, whose sum is σ = 245431412274. Its totient is φ = 245431412272.

The previous prime is 245431412221. The next prime is 245431412279. The reversal of 245431412273 is 372214134542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243647870449 + 1783541824 = 493607^2 + 42232^2 .

It is a cyclic number.

It is not a de Polignac number, because 245431412273 - 2²⁴ = 245414635057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (245431412279) 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, 122715706136 + 122715706137.

It is an arithmetic number, because the mean of its divisors is an integer number (122715706137).

Almost surely, 2^245431412273 is an apocalyptic number.

It is an amenable number.

245431412273 is a deficient number, since it is larger than the sum of its proper divisors (1).

245431412273 is an equidigital number, since it uses as much as digits as its factorization.

245431412273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The spelling of 245431412273 in words is "two hundred forty-five billion, four hundred thirty-one million, four hundred twelve thousand, two hundred seventy-three".