145421232324 has 48 divisors (see below), whose sum is σ = 341865081600. Its totient is φ = 48109840416.

The previous prime is 145421232293. The next prime is 145421232343. The reversal of 145421232324 is 423232124541.

It is a happy number.

It is a super-2 number, since 2×145421232324² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6091299 + ... + 6115125.

It is an arithmetic number, because the mean of its divisors is an integer number (7122189200).

Almost surely, 2^145421232324 is an apocalyptic number.

It is an amenable number.

145421232324 is an abundant number, since it is smaller than the sum of its proper divisors (196443849276).

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

145421232324 is a wasteful number, since it uses less digits than its factorization.

145421232324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27632 (or 27630 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

Adding to 145421232324 its reverse (423232124541), we get a palindrome (568653356865).

The spelling of 145421232324 in words is "one hundred forty-five billion, four hundred twenty-one million, two hundred thirty-two thousand, three hundred twenty-four".