206851371 has 32 divisors (see below), whose sum is σ = 291793920. Its totient is φ = 130201344.

The previous prime is 206851369. The next prime is 206851373. The reversal of 206851371 is 173158602.

It is an interprime number because it is at equal distance from previous prime (206851369) and next prime (206851373).

It is not a de Polignac number, because 206851371 - 2¹ = 206851369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206851373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 660711 + ... + 661023.

It is an arithmetic number, because the mean of its divisors is an integer number (9118560).

Almost surely, 2^206851371 is an apocalyptic number.

206851371 is a deficient number, since it is larger than the sum of its proper divisors (84942549).

206851371 is a wasteful number, since it uses less digits than its factorization.

206851371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 206851371 is about 14382.3284276226. The cubic root of 206851371 is about 591.4065560180.

The spelling of 206851371 in words is "two hundred six million, eight hundred fifty-one thousand, three hundred seventy-one".