145206563533 has 2 divisors, whose sum is σ = 145206563534. Its totient is φ = 145206563532.

The previous prime is 145206563461. The next prime is 145206563563. The reversal of 145206563533 is 335365602541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120796563364 + 24410000169 = 347558^2 + 156237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145206563533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145206563533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145206563563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72603281766 + 72603281767.

It is an arithmetic number, because the mean of its divisors is an integer number (72603281767).

Almost surely, 2^145206563533 is an apocalyptic number.

It is an amenable number.

145206563533 is a deficient number, since it is larger than the sum of its proper divisors (1).

145206563533 is an equidigital number, since it uses as much as digits as its factorization.

145206563533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 145206563533 in words is "one hundred forty-five billion, two hundred six million, five hundred sixty-three thousand, five hundred thirty-three".