145303304523 has 12 divisors (see below), whose sum is σ = 209787020280. Its totient is φ = 89417417856.

The previous prime is 145303304491. The next prime is 145303304557. The reversal of 145303304523 is 325403303541.

It is not a de Polignac number, because 145303304523 - 2⁵ = 145303304491 is a prime.

It is a super-2 number, since 2×145303304523² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145303300523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143296638 + ... + 143297651.

It is an arithmetic number, because the mean of its divisors is an integer number (17482251690).

Almost surely, 2^145303304523 is an apocalyptic number.

145303304523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

145303304523 is a deficient number, since it is larger than the sum of its proper divisors (64483715757).

145303304523 is a wasteful number, since it uses less digits than its factorization.

145303304523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286594318 (or 286594305 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 33.

It can be divided in two parts, 145303 and 304523, that added together give a triangular number (449826 = T₉₄₈).

The spelling of 145303304523 in words is "one hundred forty-five billion, three hundred three million, three hundred four thousand, five hundred twenty-three".