206226651 has 4 divisors (see below), whose sum is σ = 274968872. Its totient is φ = 137484432.

The previous prime is 206226607. The next prime is 206226661. The reversal of 206226651 is 156622602.

206226651 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.

It is not a de Polignac number, because 206226651 - 2⁷ = 206226523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206226661) 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, 34371106 + ... + 34371111.

It is an arithmetic number, because the mean of its divisors is an integer number (68742218).

Almost surely, 2^206226651 is an apocalyptic number.

206226651 is a deficient number, since it is larger than the sum of its proper divisors (68742221).

206226651 is an equidigital number, since it uses as much as digits as its factorization.

206226651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68742220.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 206226651 is about 14360.5936854992. The cubic root of 206226651 is about 590.8105788662.

The spelling of 206226651 in words is "two hundred six million, two hundred twenty-six thousand, six hundred fifty-one".