145315544412443 has 4 divisors (see below), whose sum is σ = 150003142619328. Its totient is φ = 140627946205560.

The previous prime is 145315544412421. The next prime is 145315544412463. The reversal of 145315544412443 is 344214445513541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145315544412443 - 2²⁴ = 145315527635227 is a prime.

It is a super-4 number, since 4×145315544412443⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145315544412391 and 145315544412400.

It is not an unprimeable number, because it can be changed into a prime (145315544412413) 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 3 ways as a sum of consecutive naturals, for example, 2343799103396 + ... + 2343799103457.

It is an arithmetic number, because the mean of its divisors is an integer number (37500785654832).

Almost surely, 2^{145315544412443} is an apocalyptic number.

145315544412443 is a deficient number, since it is larger than the sum of its proper divisors (4687598206885).

145315544412443 is an equidigital number, since it uses as much as digits as its factorization.

145315544412443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687598206884.

The product of its digits is 9216000, while the sum is 50.

Adding to 145315544412443 its reverse (344214445513541), we get a palindrome (489529989925984).

The spelling of 145315544412443 in words is "one hundred forty-five trillion, three hundred fifteen billion, five hundred forty-four million, four hundred twelve thousand, four hundred forty-three".