145421544230000 has 100 divisors (see below), whose sum is σ = 354188368878960. Its totient is φ = 57820301952000.

The previous prime is 145421544229981. The next prime is 145421544230021. The reversal of 145421544230000 is 32445124541.

It is a happy number.

145421544230000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×145421544230000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41869385 + ... + 45209384.

Almost surely, 2^{145421544230000} is an apocalyptic number.

145421544230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145421544230000 is an abundant number, since it is smaller than the sum of its proper divisors (208766824648960).

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

145421544230000 is an equidigital number, since it uses as much as digits as its factorization.

145421544230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87078964 (or 87078943 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 145421544230000 its reverse (32445124541), we get a palindrome (145453989354541).

The spelling of 145421544230000 in words is "one hundred forty-five trillion, four hundred twenty-one billion, five hundred forty-four million, two hundred thirty thousand".