206140515 has 16 divisors (see below), whose sum is σ = 376942848. Its totient is φ = 94235616.

The previous prime is 206140463. The next prime is 206140523. The reversal of 206140515 is 515041602.

It is not a de Polignac number, because 206140515 - 2¹³ = 206132323 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 981517 + ... + 981726.

It is an arithmetic number, because the mean of its divisors is an integer number (23558928).

Almost surely, 2^206140515 is an apocalyptic number.

206140515 is a deficient number, since it is larger than the sum of its proper divisors (170802333).

206140515 is a wasteful number, since it uses less digits than its factorization.

206140515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963258.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 206140515 is about 14357.5943319207. The cubic root of 206140515 is about 590.7283115378.

The spelling of 206140515 in words is "two hundred six million, one hundred forty thousand, five hundred fifteen".