351145205254117 has 2 divisors, whose sum is σ = 351145205254118. Its totient is φ = 351145205254116.

The previous prime is 351145205254111. The next prime is 351145205254141. The reversal of 351145205254117 is 711452502541153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346373750432161 + 4771454821956 = 18611119^2 + 2184366^2 .

It is a cyclic number.

It is not a de Polignac number, because 351145205254117 - 2¹¹ = 351145205252069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351145205254111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175572602627058 + 175572602627059.

It is an arithmetic number, because the mean of its divisors is an integer number (175572602627059).

Almost surely, 2^{351145205254117} is an apocalyptic number.

It is an amenable number.

351145205254117 is a deficient number, since it is larger than the sum of its proper divisors (1).

351145205254117 is an equidigital number, since it uses as much as digits as its factorization.

351145205254117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 351145205254117 in words is "three hundred fifty-one trillion, one hundred forty-five billion, two hundred five million, two hundred fifty-four thousand, one hundred seventeen".