145123143421432 has 32 divisors (see below), whose sum is σ = 306418367347200. Its totient is φ = 63837159861600.

The previous prime is 145123143421351. The next prime is 145123143421441. The reversal of 145123143421432 is 234124341321541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26598813882 + ... + 26598819337.

It is an arithmetic number, because the mean of its divisors is an integer number (9575573979600).

Almost surely, 2^{145123143421432} is an apocalyptic number.

It is an amenable number.

145123143421432 is an abundant number, since it is smaller than the sum of its proper divisors (161295223925768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145123143421432 is a wasteful number, since it uses less digits than its factorization.

145123143421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53197633267 (or 53197633263 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

Adding to 145123143421432 its reverse (234124341321541), we get a palindrome (379247484742973).

The spelling of 145123143421432 in words is "one hundred forty-five trillion, one hundred twenty-three billion, one hundred forty-three million, four hundred twenty-one thousand, four hundred thirty-two".