206115254 has 16 divisors (see below), whose sum is σ = 317212368. Its totient is φ = 100390752.

The previous prime is 206115253. The next prime is 206115263. The reversal of 206115254 is 452511602.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206115253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31124 + ... + 37160.

It is an arithmetic number, because the mean of its divisors is an integer number (19825773).

Almost surely, 2^206115254 is an apocalyptic number.

206115254 is a deficient number, since it is larger than the sum of its proper divisors (111097114).

206115254 is a wasteful number, since it uses less digits than its factorization.

206115254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 206115254 is about 14356.7145963135. The cubic root of 206115254 is about 590.7041807526.

Adding to 206115254 its reverse (452511602), we get a palindrome (658626856).

The spelling of 206115254 in words is "two hundred six million, one hundred fifteen thousand, two hundred fifty-four".