145431322530 has 96 divisors (see below), whose sum is σ = 384356041920. Its totient is φ = 35191653120.

The previous prime is 145431322523. The next prime is 145431322591. The reversal of 145431322530 is 35223134541.

145431322530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145431322491 and 145431322500.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56040 + ... + 542220.

It is an arithmetic number, because the mean of its divisors is an integer number (4003708770).

Almost surely, 2^145431322530 is an apocalyptic number.

145431322530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145431322530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192178020960).

145431322530 is an abundant number, since it is smaller than the sum of its proper divisors (238924719390).

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

145431322530 is a wasteful number, since it uses less digits than its factorization.

145431322530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486276 (or 486263 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 145431322530 in words is "one hundred forty-five billion, four hundred thirty-one million, three hundred twenty-two thousand, five hundred thirty".