206889151 has 4 divisors (see below), whose sum is σ = 236444752. Its totient is φ = 177333552.

The previous prime is 206889149. The next prime is 206889173. The reversal of 206889151 is 151988602.

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

It is a cyclic number.

It is not a de Polignac number, because 206889151 - 2¹ = 206889149 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 (206889121) 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, 14777790 + ... + 14777803.

It is an arithmetic number, because the mean of its divisors is an integer number (59111188).

Almost surely, 2^206889151 is an apocalyptic number.

206889151 is a deficient number, since it is larger than the sum of its proper divisors (29555601).

206889151 is an equidigital number, since it uses as much as digits as its factorization.

206889151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29555600.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 206889151 is about 14383.6417850279. The cubic root of 206889151 is about 591.4425592916.

It can be divided in two parts, 2068 and 89151, that added together give a palindrome (91219).

The spelling of 206889151 in words is "two hundred six million, eight hundred eighty-nine thousand, one hundred fifty-one".