206920153 has 16 divisors (see below), whose sum is σ = 232227072. Its totient is φ = 182736000.

The previous prime is 206920117. The next prime is 206920157. The reversal of 206920153 is 351029602.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206920153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206920157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121375 + ... + 123067.

It is an arithmetic number, because the mean of its divisors is an integer number (14514192).

Almost surely, 2^206920153 is an apocalyptic number.

It is an amenable number.

206920153 is a deficient number, since it is larger than the sum of its proper divisors (25306919).

206920153 is a wasteful number, since it uses less digits than its factorization.

206920153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 206920153 is about 14384.7194272255. The cubic root of 206920153 is about 591.4721000486.

Adding to 206920153 its reverse (351029602), we get a palindrome (557949755).

It can be divided in two parts, 2069 and 20153, that added together give a palindrome (22222).

The spelling of 206920153 in words is "two hundred six million, nine hundred twenty thousand, one hundred fifty-three".