220145529 has 16 divisors (see below), whose sum is σ = 312111360. Its totient is φ = 137544960.

The previous prime is 220145521. The next prime is 220145543. The reversal of 220145529 is 925541022.

It is not a de Polignac number, because 220145529 - 2³ = 220145521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220145496 and 220145505.

It is not an unprimeable number, because it can be changed into a prime (220145521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3159 + ... + 21219.

It is an arithmetic number, because the mean of its divisors is an integer number (19506960).

Almost surely, 2^220145529 is an apocalyptic number.

It is an amenable number.

220145529 is a deficient number, since it is larger than the sum of its proper divisors (91965831).

220145529 is a wasteful number, since it uses less digits than its factorization.

220145529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18320.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 220145529 is about 14837.3019447607. The cubic root of 220145529 is about 603.8141551019.

The spelling of 220145529 in words is "two hundred twenty million, one hundred forty-five thousand, five hundred twenty-nine".