145485447539 has 2 divisors, whose sum is σ = 145485447540. Its totient is φ = 145485447538.

The previous prime is 145485447529. The next prime is 145485447607. The reversal of 145485447539 is 935744584541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145485447539 - 2²⁰ = 145484398963 is a prime.

It is not a weakly prime, because it can be changed into another prime (145485447529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72742723769 + 72742723770.

It is an arithmetic number, because the mean of its divisors is an integer number (72742723770).

Almost surely, 2^145485447539 is an apocalyptic number.

145485447539 is a deficient number, since it is larger than the sum of its proper divisors (1).

145485447539 is an equidigital number, since it uses as much as digits as its factorization.

145485447539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384000, while the sum is 59.

The spelling of 145485447539 in words is "one hundred forty-five billion, four hundred eighty-five million, four hundred forty-seven thousand, five hundred thirty-nine".