145204252500017 has 2 divisors, whose sum is σ = 145204252500018. Its totient is φ = 145204252500016.

The previous prime is 145204252499989. The next prime is 145204252500019. The reversal of 145204252500017 is 710005252402541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73496483314081 + 71707769185936 = 8573009^2 + 8468044^2 .

It is a cyclic number.

It is not a de Polignac number, because 145204252500017 - 2¹² = 145204252495921 is a prime.

Together with 145204252500019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145204252500019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72602126250008 + 72602126250009.

It is an arithmetic number, because the mean of its divisors is an integer number (72602126250009).

Almost surely, 2^{145204252500017} is an apocalyptic number.

It is an amenable number.

145204252500017 is a deficient number, since it is larger than the sum of its proper divisors (1).

145204252500017 is an equidigital number, since it uses as much as digits as its factorization.

145204252500017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112000, while the sum is 38.

The spelling of 145204252500017 in words is "one hundred forty-five trillion, two hundred four billion, two hundred fifty-two million, five hundred thousand, seventeen".