220153009 has 4 divisors (see below), whose sum is σ = 233103204. Its totient is φ = 207202816.

The previous prime is 220152983. The next prime is 220153049. The reversal of 220153009 is 900351022.

220153009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900351022 = 2 ⋅450175511.

It can be written as a sum of positive squares in 2 ways, for example, as 129960000 + 90193009 = 11400^2 + 9497^2 .

It is a cyclic number.

It is not a de Polignac number, because 220153009 - 2⁹ = 220152497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220153049) 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, 6475072 + ... + 6475105.

It is an arithmetic number, because the mean of its divisors is an integer number (58275801).

Almost surely, 2^220153009 is an apocalyptic number.

It is an amenable number.

220153009 is a deficient number, since it is larger than the sum of its proper divisors (12950195).

220153009 is a wasteful number, since it uses less digits than its factorization.

220153009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950194.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 220153009 is about 14837.5540100112. The cubic root of 220153009 is about 603.8209937278.

The spelling of 220153009 in words is "two hundred twenty million, one hundred fifty-three thousand, nine".