145130020 has 96 divisors (see below), whose sum is σ = 371831040. Its totient is φ = 46609920.

The previous prime is 145129997. The next prime is 145130047. The reversal of 145130020 is 20031541.

It is a junction number, because it is equal to n+sod(n) for n = 145129976 and 145130003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687715 + ... + 687925.

It is an arithmetic number, because the mean of its divisors is an integer number (3873240).

Almost surely, 2^145130020 is an apocalyptic number.

145130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185915520).

145130020 is an abundant number, since it is smaller than the sum of its proper divisors (226701020).

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

145130020 is a wasteful number, since it uses less digits than its factorization.

145130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 145130020 is about 12046.9921557209. The cubic root of 145130020 is about 525.5157682675.

Adding to 145130020 its reverse (20031541), we get a palindrome (165161561).

The spelling of 145130020 in words is "one hundred forty-five million, one hundred thirty thousand, twenty".