245431410173 has 2 divisors, whose sum is σ = 245431410174. Its totient is φ = 245431410172.

The previous prime is 245431410151. The next prime is 245431410223. The reversal of 245431410173 is 371014134542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191215547524 + 54215862649 = 437282^2 + 232843^2 .

It is a cyclic number.

It is not a de Polignac number, because 245431410173 - 2⁸ = 245431409917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245431410113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122715705086 + 122715705087.

It is an arithmetic number, because the mean of its divisors is an integer number (122715705087).

Almost surely, 2^245431410173 is an apocalyptic number.

It is an amenable number.

245431410173 is a deficient number, since it is larger than the sum of its proper divisors (1).

245431410173 is an equidigital number, since it uses as much as digits as its factorization.

245431410173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 245431410173 in words is "two hundred forty-five billion, four hundred thirty-one million, four hundred ten thousand, one hundred seventy-three".