206115125 has 32 divisors (see below), whose sum is σ = 271924224. Its totient is φ = 155736000.

The previous prime is 206115113. The next prime is 206115131. The reversal of 206115125 is 521511602.

It is a happy number.

It is not a de Polignac number, because 206115125 - 2⁶ = 206115061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206115125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166007 + ... + 167243.

It is an arithmetic number, because the mean of its divisors is an integer number (8497632).

Almost surely, 2^206115125 is an apocalyptic number.

206115125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206115125 is a deficient number, since it is larger than the sum of its proper divisors (65809099).

206115125 is a wasteful number, since it uses less digits than its factorization.

206115125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 206115125 is about 14356.7101036414. The cubic root of 206115125 is about 590.7040575192.

Adding to 206115125 its reverse (521511602), we get a palindrome (727626727).

The spelling of 206115125 in words is "two hundred six million, one hundred fifteen thousand, one hundred twenty-five".