146529220 has 12 divisors (see below), whose sum is σ = 307711404. Its totient is φ = 58611680.

The previous prime is 146529217. The next prime is 146529223. The reversal of 146529220 is 22925641.

It is an interprime number because it is at equal distance from previous prime (146529217) and next prime (146529223).

It can be written as a sum of positive squares in 2 ways, for example, as 33362176 + 113167044 = 5776^2 + 10638^2 .

It is not an unprimeable number, because it can be changed into a prime (146529223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3663211 + ... + 3663250.

It is an arithmetic number, because the mean of its divisors is an integer number (25642617).

Almost surely, 2^146529220 is an apocalyptic number.

146529220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146529220 is an abundant number, since it is smaller than the sum of its proper divisors (161182184).

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

146529220 is a wasteful number, since it uses less digits than its factorization.

146529220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7326470 (or 7326468 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 146529220 is about 12104.9254438018. The cubic root of 146529220 is about 527.1992040856.

The spelling of 146529220 in words is "one hundred forty-six million, five hundred twenty-nine thousand, two hundred twenty".