145330620 has 96 divisors (see below), whose sum is σ = 453600000. Its totient is φ = 34550784.

The previous prime is 145330613. The next prime is 145330649. The reversal of 145330620 is 26033541.

It is a happy number.

It is a super-2 number, since 2×145330620² = 42241978219168800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15631 + ... + 23129.

It is an arithmetic number, because the mean of its divisors is an integer number (4725000).

Almost surely, 2^145330620 is an apocalyptic number.

145330620 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 145330620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226800000).

145330620 is an abundant number, since it is smaller than the sum of its proper divisors (308269380).

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

145330620 is a wasteful number, since it uses less digits than its factorization.

145330620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547 (or 7545 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 145330620 is about 12055.3150104010. The cubic root of 145330620 is about 525.7577809819.

The spelling of 145330620 in words is "one hundred forty-five million, three hundred thirty thousand, six hundred twenty".