145345335533 has 4 divisors (see below), whose sum is σ = 145600776060. Its totient is φ = 145089895008.

The previous prime is 145345335521. The next prime is 145345335571. The reversal of 145345335533 is 335533543541.

145345335533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335533543541 = 7 ⋅47933363363.

It can be written as a sum of positive squares in 2 ways, for example, as 56194124809 + 89151210724 = 237053^2 + 298582^2 .

It is a cyclic number.

It is not a de Polignac number, because 145345335533 - 2⁶ = 145345335469 is a prime.

It is a super-2 number, since 2×145345335533² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145341335533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127719410 + ... + 127720547.

It is an arithmetic number, because the mean of its divisors is an integer number (36400194015).

Almost surely, 2^145345335533 is an apocalyptic number.

It is an amenable number.

145345335533 is a deficient number, since it is larger than the sum of its proper divisors (255440527).

145345335533 is an equidigital number, since it uses as much as digits as its factorization.

145345335533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255440526.

The product of its digits is 2430000, while the sum is 44.

The spelling of 145345335533 in words is "one hundred forty-five billion, three hundred forty-five million, three hundred thirty-five thousand, five hundred thirty-three".