206560153 has 4 divisors (see below), whose sum is σ = 217431760. Its totient is φ = 195688548.

The previous prime is 206560117. The next prime is 206560157. The reversal of 206560153 is 351065602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351065602 = 2 ⋅175532801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206560153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206560157) 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 3 ways as a sum of consecutive naturals, for example, 5435775 + ... + 5435812.

It is an arithmetic number, because the mean of its divisors is an integer number (54357940).

Almost surely, 2^206560153 is an apocalyptic number.

It is an amenable number.

206560153 is a deficient number, since it is larger than the sum of its proper divisors (10871607).

206560153 is a wasteful number, since it uses less digits than its factorization.

206560153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871606.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 206560153 is about 14372.2007013540. The cubic root of 206560153 is about 591.1288862410.

The spelling of 206560153 in words is "two hundred six million, five hundred sixty thousand, one hundred fifty-three".