145612020 has 96 divisors (see below), whose sum is σ = 423335808. Its totient is φ = 37366272.

The previous prime is 145612009. The next prime is 145612037. The reversal of 145612020 is 20216541.

145612020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 237234 + ... + 237846.

It is an arithmetic number, because the mean of its divisors is an integer number (4409748).

Almost surely, 2^145612020 is an apocalyptic number.

145612020 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 145612020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211667904).

145612020 is an abundant number, since it is smaller than the sum of its proper divisors (277723788).

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

145612020 is a wasteful number, since it uses less digits than its factorization.

145612020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145612020 is about 12066.9805668195. The cubic root of 145612020 is about 526.0968993606.

Adding to 145612020 its reverse (20216541), we get a palindrome (165828561).

The spelling of 145612020 in words is "one hundred forty-five million, six hundred twelve thousand, twenty".