20160229 has 4 divisors (see below), whose sum is σ = 20182860. Its totient is φ = 20137600.

The previous prime is 20160187. The next prime is 20160251. The reversal of 20160229 is 92206102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7924225 + 12236004 = 2815^2 + 3498^2 .

It is a cyclic number.

It is not a de Polignac number, because 20160229 - 2¹¹ = 20158181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20160269) 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, 9922 + ... + 11779.

It is an arithmetic number, because the mean of its divisors is an integer number (5045715).

Almost surely, 2^20160229 is an apocalyptic number.

It is an amenable number.

20160229 is a deficient number, since it is larger than the sum of its proper divisors (22631).

20160229 is an equidigital number, since it uses as much as digits as its factorization.

20160229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22630.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20160229 is about 4490.0143652331. The cubic root of 20160229 is about 272.1647151482.

The spelling of 20160229 in words is "twenty million, one hundred sixty thousand, two hundred twenty-nine".