145331442543 has 24 divisors (see below), whose sum is σ = 225444904320. Its totient is φ = 83034428400.

The previous prime is 145331442523. The next prime is 145331442587. The reversal of 145331442543 is 345244133541.

It is not a de Polignac number, because 145331442543 - 2⁸ = 145331442287 is a prime.

It is a super-2 number, since 2×145331442543² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145331442523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992718 + ... + 1129668.

It is an arithmetic number, because the mean of its divisors is an integer number (9393537680).

Almost surely, 2^145331442543 is an apocalyptic number.

145331442543 is a deficient number, since it is larger than the sum of its proper divisors (80113461777).

145331442543 is a wasteful number, since it uses less digits than its factorization.

145331442543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144187 (or 144180 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

The spelling of 145331442543 in words is "one hundred forty-five billion, three hundred thirty-one million, four hundred forty-two thousand, five hundred forty-three".