145513352544121 has 2 divisors, whose sum is σ = 145513352544122. Its totient is φ = 145513352544120.

The previous prime is 145513352544089. The next prime is 145513352544151. The reversal of 145513352544121 is 121445253315541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102223019091600 + 43290333452521 = 10110540^2 + 6579539^2 .

It is a cyclic number.

It is not a de Polignac number, because 145513352544121 - 2⁵ = 145513352544089 is a prime.

It is not a weakly prime, because it can be changed into another prime (145513352544151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72756676272060 + 72756676272061.

It is an arithmetic number, because the mean of its divisors is an integer number (72756676272061).

Almost surely, 2^{145513352544121} is an apocalyptic number.

It is an amenable number.

145513352544121 is a deficient number, since it is larger than the sum of its proper divisors (1).

145513352544121 is an equidigital number, since it uses as much as digits as its factorization.

145513352544121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440000, while the sum is 46.

The spelling of 145513352544121 in words is "one hundred forty-five trillion, five hundred thirteen billion, three hundred fifty-two million, five hundred forty-four thousand, one hundred twenty-one".