145301643533 has 2 divisors, whose sum is σ = 145301643534. Its totient is φ = 145301643532.

The previous prime is 145301643523. The next prime is 145301643581. The reversal of 145301643533 is 335346103541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143438685289 + 1862958244 = 378733^2 + 43162^2 .

It is an emirp because it is prime and its reverse (335346103541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145301643533 - 2⁶ = 145301643469 is a prime.

It is a super-2 number, since 2×145301643533² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145301643523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72650821766 + 72650821767.

It is an arithmetic number, because the mean of its divisors is an integer number (72650821767).

Almost surely, 2^145301643533 is an apocalyptic number.

It is an amenable number.

145301643533 is a deficient number, since it is larger than the sum of its proper divisors (1).

145301643533 is an equidigital number, since it uses as much as digits as its factorization.

145301643533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 145301643533 in words is "one hundred forty-five billion, three hundred one million, six hundred forty-three thousand, five hundred thirty-three".